The most direct effect of exposing prokaryotic cells to streptomycin is inhibition of protein synthesis.
Streptomycin targets the small ribosomal subunit in prokaryotes, which is responsible for binding tRNA to mRNA during protein synthesis. By interfering with this process, streptomycin prevents the correct translation of the genetic code into proteins, ultimately leading to inhibition of protein synthesis.
This can have a range of effects on the cell, including stunted growth, reduced replication, and eventual cell death. Therefore, the most direct effect of exposing prokaryotic cells to streptomycin is inhibition of protein synthesis.
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which parameter associated with mean arterial blood pressure will angiotensin ii directly affect? how will this parameter change? what will it do to map?
Angiotensin II has a direct effect on peripheral resistance, which is one of the parameters associated with mean arterial blood pressure (MAP).
Peripheral resistance is a parameter associated with mean arterial blood pressure that will be directly impacted by angiotensin II. Angiotensin II increases peripheral resistance by narrowing blood vessels in response to decreased blood flow to the kidneys. When peripheral resistance increases, MAP also increases.
Thus, Angiotensin II directly affects the parameter of peripheral resistance in the regulation of arterial blood pressure.Therefore, this parameter will change by increasing when angiotensin II is present, leading to an increase in MAP.
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how does the existence of multiple genes controlling skin color result int he appearance of many different shades of skin color
The existence of multiple genes that control skin color results in the appearance of many different shades of skin color. Human skin color is a polygenic trait that is controlled by multiple genes. As a result, skin color is highly variable and ranges from very light to very dark.
The genes that control skin color are located on different chromosomes and are inherited from both parents. Therefore, the genes that control skin color can combine in many different ways, resulting in the appearance of many different shades of skin color. The amount and type of melanin in the skin determine skin color. Melanin is a pigment that is produced by special cells called melanocytes. The more melanin a person has, the darker their skin will be. Melanin production is controlled by genes that are located on different chromosomes. Some of these genes control the amount of melanin that is produced, while others control the type of melanin that is produced. Therefore, the combination of these genes determines the amount and type of melanin that is produced, which in turn determines skin color. Multiple gene control polygenic traits of skin color in human.Learn more about polygenic traits: https://brainly.com/question/521134
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a genus can best be defined as . group of answer choices a taxon comprised of classes a taxon composed of families a taxon composed of one or more species a taxon belonging to a species the most specific taxon
A genus can best be defined as a taxon composed of one or more species.
A genus is a grouping of living organisms that consists of one or more species. Genera (plural of genus) are taxonomic rankings between family and species. Members of a genus share a common ancestor and have similar anatomical characteristics, making them distinct from other species.
However, members of a genus are not necessarily more closely related to each other than they are to other organisms outside the genus, as genera are simply a classification tool used in taxonomy to organize life-forms. The designation of species and genera is based on anatomical and genetic characteristics, as well as evolutionary history. In this manner, genera can be a component of a series of classifications in which larger taxonomic categories are progressively subsumed within more compact groupings.
This is the most specific taxon and is composed of families and classes. Hence , taxon composed of one or more species is correct .
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evolution of seed-bearing plants reduced plant dependence on _____________.
a. water-dependent reproduction
b. sun-dependent reproduction
c. land-dependent reproduction
Evolution of seed-bearing plants reduced plant dependence on water-dependent reproduction . Option a)
The evolution of seed-bearing plants, which first appeared in the late Devonian period (around 360 million years ago), allowed plants to reproduce without the need for water, which was previously required for fertilization. Instead, the production of seeds allowed for reproduction via pollination, which enabled plants to colonize new environments and develop adaptations to various terrestrial habitats.
This allowed plants to become less dependent on water for reproduction, and to better withstand environmental stresses, such as droughts. Therefore, the evolution of seed-bearing plants was a significant step in the colonization and diversification of terrestrial ecosystems.
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According to the Bureau of Labor Statistics, massage therapists held about 154,000 jobs in 2010. Why does this statistic fail to accurately depict the job landscape for the field?
it doesn't take into account all venues for massage
most of these workers were self-employed
many massage therapists work under the table
the Bureau of Labor Statistics is an unreliable source
Answer:
The most accurate answer is: it doesn't take into account all venues for massage.
While the statistic provided by the Bureau of Labor Statistics is accurate, it only includes massage therapists who are employed in traditional settings, such as spas, clinics, and wellness centers. This statistic fails to accurately depict the job landscape for the field because it does not include massage therapists who work in non-traditional settings, such as hospitals, sports teams, corporate offices, and private practices. Additionally, many massage therapists are self-employed or work as independent contractors, which may not be captured in this statistic.
Which of the following could occur for Iceland if there were no surface currents?
a. Iceland does not exist
b. Iceland would become a desert
c. Iceland's climate would not change.
d. Iceland's climate would change
The following image shows a cell before and during the process of mitosis. Before it undergoes mitosis, the cell contains 2n chromosomes.
A division happens in the next step. Which describes the cells after the next step is complete?
The cell division process known as mitosis produces two identical daughter cells with the same number of chromosomes as the parent cell.
Is mitosis the method of cell division that yields two daughter cells that are identical to both the parent and each other?A vital process for life is mitosis.A cell duplicates all of its parts, including its chromosomes, and then divides into two identical daughter cells.
What do you name the asexual reproduction process where a cell divides into two identical daughter cells?A parent cell separates into two identical, equal-sized daughter cells in a process known as binary fission. As a parent organism splits into parts or fragments, fragmentation takes place, and each
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in a chloroplast, where is carbon dioxide used to produce a carbohydrate?
Answer:
In plants, carbon dioxide (CO2) enters the chloroplast through the stomata and diffuses into the stroma of the chloroplast—the site of the Calvin cycle reactions where sugar is synthesized.
Explanation:
the location of the greatest remaining natural biodiversity
Brazil is the country with the greatest biodiversity of flora and fauna on the planet. Brazil has the highest number of species of known mammals and freshwater fish, and more than 50,000 species of trees and bushes, it takes first place in plant diversity.
The range and variability of life on Earth is referred to as biodiversity or biological diversity. The term "biodiversity" refers to the measurement of variety at the genetic (genetic variability), species (species diversity), and ecological (ecosystem diversity) levels.
Because of the warm environment and high primary productivity in the area close to the equator, biodiversity is not evenly distributed around the planet; it is typically higher in the tropics. Less than 10% of the area of the earth is covered by tropical forest ecosystems, which also house 90% of all species. The Western Pacific coasts, which have the warmest sea surface temperatures, and the mid-latitudinal band of all oceans typically have higher levels of marine life. Variations in species diversity can be found along latitudinal lines. As a result of deforestation, biodiversity has been rising over time and tends to concentrate in hotspots. Nevertheless, this increase will likely slow down in the coming years. It includes all of the biological processes—evolutionary, ecological, and cultural.
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which of the following are signals that a cell needs to divide? the cell is unable to efficiently exchange materials with its environment. the dna is not able to effectively control cellular activities. the cell has stored lots of carbohydrates and lipids. a cell nearby sends a chemical message indicating it is damaged and needs to be replaced.
The signals that a cell needs to divide are: a cell nearby sends a chemical message indicating it is damaged and needs to be replaced.
A signal that indicates that a cell needs to divide is when a cell nearby sends a chemical message indicating it is damaged and needs to be replaced. Cell division is the process by which one cell divides into two or more daughter cells. Cell division is an essential mechanism in the growth and development of living organisms, and it occurs in almost all forms of life. There are two types of cell division: mitosis and meiosis.
There are many signals that a cell needs to divide. One such signal is when a cell nearby sends a chemical message indicating it is damaged and needs to be replaced. Other signals that indicate that a cell needs to divide include DNA damage, nutrient deprivation, and physical stress. In addition, some cells have an internal "clock" that tells them when to divide. This clock is controlled by genes that are activated and deactivated during the cell cycle.
Thus, The correct option that indicates a signal that a cell needs to divide is when a cell nearby sends a chemical message indicating it is damaged and needs to be replaced.
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as they walked through the haunted house, every room heightened their fear and anxiety. the walls of one room moved to close in around them, while in another they had to lie in coffins, which then opened up beneath them. which division of their ans was most active, and which neurotransmitter(s) would be involved in this pathway? select all that apply.
The sympathetic nervous system (SNS) is likely most active during the haunted house experience. The SNS is the part of the autonomic nervous system that activates the body's "fight-or-flight" response.
This response causes a release of the neurotransmitters adrenaline and noradrenaline, resulting in increased heart rate, sweating, and other physiological changes.
In addition, other neurotransmitters such as dopamine and serotonin may also be involved. Dopamine is typically involved in feelings of pleasure, but when released too quickly or in large quantities it can cause feelings of fear. Serotonin is linked to feelings of well-being, but it can also be involved in feelings of anxiety.
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As they walked through the haunted house, every room heightened their fear and anxiety. the walls of one room moved to close in around them, while in another they had to lie in coffins, which then opened up beneath them. which division of their answer was most active, and which neurotransmitter(s) would be involved in this pathway? select all that apply.
A. sympathetic nervous system
B. Central nervous system
C. Peripheral nervous system
D. none
which activities predominantly use slow-twitch muscle fibers?
Activities predominantly use slow-twitch muscle fibers are for walking and jogging.
Skeletal muscles are made up of separate muscle fibres. And like muscles themselves, not all muscle fibres are the same. When it comes to movement and exercise programming, it's crucial to be aware of the differences between fast-twitch and slow-twitch skeletal muscle fibre types.
Fast-twitch muscle fibres deliver greater and more powerful forces, but for shorter durations and exhaust sooner. They are more anaerobic with less blood flow, consequently they are frequently referred to as white fibres or type II. Both kinds of fibres are present in skeletal muscles, although the proportions can vary based on a number of variables, such as muscle function, age, and training.
Both kinds of fibres are present in skeletal muscles, although the proportions can vary based on a number of variables, such as muscle function, age, and training. If you are a sports performance specialist, it's vital to recognise the differences between the two muscle types.
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Which layers of the stem are made of parenchyma cells? A. cortex and pith B. phloem C. sclerenchyma D. xylem.
The stem of a plant consists of four distinct layers, each of which are made up of different types of cells. The two layers of the stem that are made of parenchyma cells are the cortex and the pith.
Here, correct option is A. cortex and pith.
The cortex is the outermost layer of the stem and is typically composed of loosely packed parenchyma cells. These cells are responsible for providing the plant with support and assisting in the transport of water and nutrients.
The pith is the innermost layer of the stem, lying just beneath the cortex. It is comprised of more densely packed parenchyma cells, which are responsible for the production and storage of food. The other two layers of the stem, the phloem and the xylem, are made up of cells other than parenchyma cells.
The phloem is composed of sieve tube elements, companion cells, and phloem parenchyma cells, while the xylem is composed of tracheids and vessel elements.
Therefore, correct option is A. cortex and pith.
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lysosomal membranes contain a proton pump that utilizes the energy of atp hydrolysis to pump protons out of the lysosome, thereby maintaining the lumen at low ph. true or false?
This statement is true. Lysosomal membranes contain a proton pump that utilizes the energy of ATP hydrolysis to pump protons out of the lysosome, thereby maintaining the lumen at low pH. .
Lysosomes are organelles inside a cell that contain enzymes, which break down and digest unneeded materials in the cell. These organelles are found in the cytoplasm of a eukaryotic cell, and they are the primary site of digestion in the cell.
The proton pump that is located in lysosomes moves protons from inside the lysosome to the outside, which helps to maintain the low pH of the lysosomal lumen.
The energy needed for the proton pump comes from the hydrolysis of ATP, which is used to move the protons against their concentration gradient.
Therefore, the lysosomal membrane contains a proton pump that utilizes the energy of ATP hydrolysis to pump protons out of the lysosome, thereby maintaining the lumen at low pH.
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The Institute for Therapeutic Massage offers an oncology massage-certificate program that exceeds the training hour
requirements for certification in New Jersey. How many hours does the course comprise?
800
700
600
900
The 700-hour, NJ State-approved OMCP massage therapy programme may be finished in 10 months while attending our daytime sessions.
The cost of massage therapy education in New Jersey?We at NJ School of Massage support an easy and transparent application procedure. The cost of tuition is $7,000.00* and it includes a school t-shirt and free tutoring. Although it is not necessary to purchase a massage table in order to enrol, the school may obtain one for you at a great discount.
You will be prepared to become a New Jersey licenced massage therapist after completing this 684-hour complete curriculum. 48 online hours, 536 lecture and lab hours, and 100 hours of supervised clinical practise make up the curriculum.
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Which of the following is not a characteristic of DNA?
A. It stores genetic information that controls protein synthesis.
B. Deoxyribose is the sugar constituent of its structure.
C. It exists in a double-helical form in the cell.
D. It performs protein synthesis.
The characteristic of DNA that is not correct is: D. It performs protein synthesis.
DNA (deoxyribonucleic acid) is a genetic material that is found in the nucleus of the cell. It is responsible for storing genetic information that controls protein synthesis. Deoxyribose is a sugar that is the constituent of the structure of DNA, and it exists in a double-helical form in the cell.
DNA performs protein synthesis is incorrect because DNA is only responsible for storing the genetic information that controls protein synthesis. The actual protein synthesis process occurs in the ribosomes, which is a small, spherical organelle present in the cell, and this process is initiated by mRNA (messenger RNA).
Thus, we can conclude that DNA does not perform protein synthesis, and the correct option among the given options is D. It performs protein synthesis.
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if a single point mutation occurs at a random place in the human genome, what is the most likely outcome?
The most likely outcome of a single point mutation occurring at a random place in the human genome is that the mutation will have no noticeable effect on the organism. Option E is correct.
Most of the human genome consists of non-coding DNA, which means that a mutation in these regions is unlikely to have any functional consequences. Additionally, even if a mutation occurs in a coding region of a gene, the vast majority of mutations are either silent (meaning they do not affect the amino acid sequence of the encoded protein) or result in a missense mutation that may or may not affect protein function.
However, it is important to note that the specific outcome of a mutation depends on many factors, including the location and nature of the mutation, as well as its effect on gene function. In rare cases, a mutation can have a noticeable positive or negative effect on an organism, such as causing a genetic disease or providing a selective advantage in a specific environment.
Hence, E. The mutation will have no noticeable effect on the organism is the correct option.
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--The given question is incomplete, the complete question is
"if a single point mutation occurs at a random place in the human genome, what is the most likely outcome? A) The mutation will have a noticeable negative effect on the organism B) The mutation will lead to a noticeable loss-of-function in a gene C) The mutation will to a noticeable gain-of-function in a gene D) The mutation will have a noticeable positive effect on the organism E) The mutation will have no noticeable effect on the organism."--
Chocolate Piece
1st (closest to candle)
2nd
3rd
4th
5th
6th (farthest from candle)
Time to Start Melting
(minutes : seconds)
In general, the chocolate closest to the candle would start melting first, followed by the chocolate pieces progressively farther away.
The exact time it would take for each chocolate piece to start melting would depend on the factors like the size and shape of the chocolate pieces.
What is chocolate melting?
Chocolate melting refers to the process of changing solid chocolate into a liquid state by heating it. Chocolate is made up of cocoa solids, cocoa butter, sugar, and other ingredients such as milk powder or flavorings. When heated, the cocoa butter in chocolate melts and becomes a liquid, which makes the chocolate soft and malleable.
Melting chocolate is a crucial step in many chocolate recipes, such as truffles, ganache, and chocolate-covered fruits or nuts. It can also be used as a topping or filling for cakes, cookies, and other desserts.
There are several ways to melt chocolate, including using a double boiler, microwave, or oven. It's important to melt chocolate slowly and gently, as overheating can cause the chocolate to become grainy, separate, or scorch. It's also important to stir the chocolate frequently during melting to ensure that it melts evenly and doesn't burn.
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Which type of plant life would be present in a climax community but would NOT be present in the early stages of succession?GrassesTreesWildflowersShrubs
Trees would be present in a climax community but would NOT be present in the early stages of succession.
In the early stages of succession, the primary colonizers are usually pioneer species such as grasses, shrubs, and wildflowers that are adapted to survive in harsh environmental conditions, such as low nutrient levels and high exposure to sunlight. These species are generally short-lived and do not have deep root systems, which make them vulnerable to disturbances such as wind and water erosion. As the soil begins to accumulate nutrients and organic matter, and as the microclimate becomes more stable, the pioneer species begin to be replaced by more long-lived and shade-tolerant species such as trees. Over time, the trees become the dominant vegetation in the ecosystem and form a climax community. The presence of trees indicates that the ecosystem has reached a state of relative stability and self-regulation.
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what is the one most important thing to pay attention to when placing any labels on an agar plate with the permanent marker (e.g., quadrants in step 1)?
The one most important thing to pay attention to when placing any labels on an agar plate with the permanent marker (e.g., quadrants in step 1) is the outside of the plate to avoid contamination.
Agar is a gel-like substance derived from red algae that is commonly used to cultivate microorganisms in laboratories. It is a polysaccharide that is typically extracted from the cell walls of certain species of red algae, including Gracilaria, Gelidium, and Pterocladia, and is commonly used to prepare solid or semi-solid culture media for microbiological applications.
In laboratory experiments, agar is frequently utilized as a growth medium for bacteria, fungi, and other microorganisms, it is commonly used as a method of cultivating microbes and for testing the effects of various substances on microorganisms. The most important thing to pay attention to when placing any labels on an agar plate with a permanent marker is to avoid contaminating the outside of the plate. Contamination may occur if the marker comes into touch with the surface of the agar, making it more difficult to obtain accurate experimental findings. As a result, it is critical to handle agar plates with caution and to avoid placing labels on or near the surface of the agar.
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The process by which water vapor passes through stomata from plants to the atmosphere is called?
Answer:
Transpiration
Explanation:
Transpiration occurs when plants take up liquid water from the soil and release water vapour into the air from their leaves
Connor listed the steps involved when a Portuguese man-of-war reproduces.
1. Sperm and eggs are released into the water.
2. Eggs are fertilized.
3. Larvae develop and attach to a surface.
4. Larvae grow into polyps.
5. Each polyp forms tiny medusae.
Which describes the missing step?
When medusae bud off of the polyp following step 5 is the step that is missing from Connor's list.
The Portuguese man-of-war (Physalia physalis) is indeed not technically a jellyfish but rather a collection of diverse creatures (hydroids) gathered into a colonial organism. It is a cnidary, which is thought to be extremely dangerous to other species, including humans. Its life cycle resembles that of a jellyfish, though.
A Portuguese man-of-life war's cycle begins with the release of gametes into the ocean.
fertilisation from without
formation of a planula, larva equipped with free-swimming cilia.
The polyp as well as scifistoma is formed when planula clings to a surface.
Through gemmation (not fragmentation), the polyp's oral pole, or strobilus, can create jellyfish larvae.
When medusae bud off of the polyp following step 5 is the step that is missing from Connor's list.
(Connor listed the steps involved when a Portuguese man-of-war reproduces. I only have an hour on this test
1. Sperm and eggs are released into the water.
2. Eggs are fertilized.
3. Larvae develop and attach to a surface.
4. Larvae grow into polyps.
5. Each polyp forms tiny medusae.
Which describes the missing step?
The larvae break into pieces after step 3.
The polyps break into pieces after step 4.
The medusae bud off the polyp after step 5.
The polyps regenerate before step 5.)
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red-green color blindness is inherited as a recessive x-linked trait. what are the following probabilities? a woman with phenotypically normal parents and a color-blind brother will have a color-blind son. assume that she has no previous children. the next child of a phenotypically normal woman, who has already had one color-blind son, will be a color-blind son. the next child of a phenotypically normal woman, who has already had one color-blind son, and who is married to a color-blind man, will be a color-blind daughter.
The probability percentage is a. 25%b. 50%c. 1/4 or 25%.
a. A woman with phenotypically normal parents and a color-blind brother will have a color-blind son. Phenotypically normal parents mean that they don't have the disorder. Thus, the woman can be assumed to be a carrier of red-green color blindness. Therefore, the probability of the woman having a color-blind son will be 1/4 or 25%.
b. The next child of a phenotypically normal woman, who has already had one color-blind son, will be a color-blind son. According to the question, the woman already had one color-blind son. This means that she must be a carrier for the disorder. Therefore, the probability of her next child being a color-blind son is 1/2 or 50%.
c. The next child of a phenotypically normal woman, who has already had one color-blind son, and who is married to a color-blind man, will be a color-blind daughter. The phenotypically normal woman in this case is a carrier for the disorder. The color-blind man has to be XY to pass on the disorder.
The daughter receives one X from each parent, and so the probability of her being a carrier is 1/2. The probability of the daughter being color-blind is 1/2 × 1/2 or 1/4.
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the mushroom, psilocybe cubensis, is theorized to be the famed indic hallucinogenic substance known as soma. True or False?
It is false that the mushroom, psilocybe cubensis, is theorized to be the famed indic hallucinogenic substance known as soma.
Psilocybe cubensis is a species of mushroom that contains the psychoactive compound psilocybin, which can produce hallucinogenic effects when consumed. However, there is no evidence to support the theory that this mushroom was the source of the hallucinogenic substance known as soma in ancient Indian texts.
The identity of soma is a subject of debate among scholars, and it is not clear what plant or substance was actually used to produce its effects. Some researchers have suggested that soma may have been a type of mushroom, while others have proposed that it was made from a mixture of plant materials, or that it was a purely symbolic or mythical substance.
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When scientists compare organisms at the molecular level, what are they actually studying to determine evolutionary relationships?
Scientists compare different organisms at the molecular level to understand their evolutionary relationships. They study DNA, RNA, and proteins to see how closely related organisms are.
Think of it like comparing different puzzle pieces to see how they fit together. Scientists look at the shapes and patterns of the molecular puzzle pieces to see which organisms share the most similarities. If two organisms have similar puzzle pieces, they are more likely to be closely related.
By studying the molecular puzzle pieces, scientists can also estimate how long ago different organisms shared a common ancestor. It's like looking at the age of the puzzle pieces to see how long ago they were cut from the same puzzle board.
Overall, scientists use molecular biology to help them piece together the evolutionary history of different organisms and better understand how they are related.
what type of molecule contained within the capsule of some organisms can cleave antibodies, rendering them useless?
The molecule you are referring to is called a "capsule polysaccharide," and it can interfere with the binding of antibodies to the surface of bacteria, rendering them ineffective.
Capsule polysaccharides are complex carbohydrate molecules that are found on the surface of many pathogenic bacteria, including Streptococcus pneumoniae, Haemophilus influenzae, and Neisseria meningitidis. These polysaccharides can inhibit the binding of antibodies to the bacterial surface, making it difficult for the immune system to recognize and eliminate the bacteria. This can be particularly problematic in the case of Streptococcus pneumoniae, which is a major cause of pneumonia and meningitis, especially in young children and elderly individuals.
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Which stressor causes high concentrations of abscisic acid to travel from the roots to the shoot?A) DroughtB) FloodingC) High temperatureD) SalinityE) Heavy metal toxicity
Drought causes high concentrations of abscisic acid to travel from the roots to the shoot.
Abscisic acid is a plant hormone that plays a role in regulating plant responses to stress. During drought, water availability decreases, and this triggers the production of abscisic acid in the roots.
The abscisic acid then moves through the xylem to the shoot, where it triggers a variety of responses that help the plant conserve water. These responses include closing of stomata, reduction in shoot growth, and increase in root growth. By reducing water loss, these responses help the plant survive during periods of drought stress.
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urea cycle happens in where? group of answer choices mitochondria cytoplasm both mitochondria and cytoplasm
The urea cycle happens in both the mitochondria and cytoplasm.
Mitochondria are the powerhouses of the cell, and they help to convert proteins into energy. The urea cycle takes place in the mitochondria and involves the conversion of ammonia into urea. The cytoplasm of the cell is the aqueous solution that contains all the necessary components for the urea cycle, such as enzymes and the necessary substrates. In the cytoplasm, the urea is produced and excreted from the cell.
Urea is formed in the liver as part of the process of the urea cycle. The urea cycle is a series of biochemical processes that convert nitrogen waste into a non-toxic substance called urea, which is excreted by the kidneys into the urine. It is the primary mechanism by which mammals excrete ammonia.
The urea cycle occurs in the liver and is critical for maintaining the body's nitrogen balance. In the mitochondria and cytoplasm of liver cells, the urea cycle occurs. The urea cycle takes ammonia that has been produced during protein breakdown and converts it to urea. The urea is then excreted from the body through the kidneys.
In summary, the urea cycle occurs in both the mitochondria and the cytoplasm.
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organism 1 inherits a mutation from its parents. organism 2 is exposed to a substance in its environment that causes a mutation. which of these best describes how the mutations are different?
the main difference between the mutations in organism 1 and organism 2 is the way they were acquired.
The mutations in organism 1 are inherited from its parents and are therefore present in its DNA from birth, while the mutation in organism 2 is caused by exposure to a substance in its environment and is not present in its DNA from birth.
In organism 1, the mutation was present in one or both of its parents, and was passed down to the offspring through their DNA. This type of mutation is called a germ-line mutation, and it can affect all the cells in the organism's body, including its gametes (sperm or eggs). As a result, the mutation can be passed down to future generations.
In organism 2, the mutation was caused by exposure to a substance in its environment, such as a chemical, radiation, or a virus. This type of mutation is called a somatic mutation, and it only affects the cells that were exposed to the mutagen. Somatic mutations are not passed down to offspring, as they do not affect the organism's gametes. However, somatic mutations can have important consequences for the individual, as they can lead to the development of diseases such as cancer.
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Compare the productivity of terrestrial and aquatic ecosystems against the percent of Earth’s surface area they occupy.
Answer:
Explanation:
Aquatic ecosystems cover about 70% of Earth’s surface while terrestrial ecosystems cover about 28.26% 12. However, terrestrial ecosystems are much more productive than aquatic ecosystems per unit area. Terrestrial ecosystems account for about 2/3 of the biosphere’s primary producers while aquatic ecosystems account for only about 1/3, despite occupying a larger surface area 3. This means that terrestrial ecosystems are 5-6 times more productive than aquatic ecosystems per unit area 3.