i did'nt understod ur question
Why aren’t the three rRNA genes of corn one another’s closest relatives?
A. Because corn is a hybrid of yeast, cyanobacteria, and E. coli
B. Endosymbiosis in the ancestor of corn gave it the ability to photosynthesize and respire
C. Endosymbiosis in the ancestors of eukaryotes, and again in photosynthetic eukaryotes led to the evolution of mitochondria and chloroplasts, which retain parts of their original genomes
The correct option (c) Endosymbiosis in the ancestors of eukaryotes, and again in photosynthetic eukaryotes led to the evolution of mitochondria and chloroplasts, which retain parts of their original genomes.
Ribosomal ribonucleic acid (rRNA) is a non-coding RNA that is the principal component of ribosomes, which are required by all cells. rRNA is a ribozyme that conducts protein synthesis in ribosomes.
Ribosomal RNA is transcribed from rDNA and then bound to ribosomal proteins to produce small and large ribosomal subunits. The ribosome's physical and mechanical element that causes transfer RNA (tRNA) and messenger RNA (mRNA) to process and translate the latter into proteins is rRNA.
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It is known that before an eye movement or a finger movement occurs, it is possible to record altered activity in a specific cerebral cortex area. The Gestaltists would argue that this is support for the principle of
The correct option is B ; Isomorphism , The gestalt perception hypothesis seeks to describe how the human brain understands information about connections and hierarchy in a design or picture based on visual signals such as proximity, resemblance, and closure.
According to the proximity principle, things that are near together appear to be more linked than those that are farther apart. Andy Rutledge is the source. Proximity is so potent that it overpowers color, form, and other qualities that could distinguish a collection of things.
According to the Gestalt Theory of learning psychology, every stimulus in learning is received by humans in its most basic form, often known as the Law of Simplicity.
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Full Question ;
It is known that before an eye movement or a finger movement occurs, it is possible to record altered activity in a specific cerebral cortex area. The Gestaltists would argue that this is support for the principle of ____.
A Cerebral sign Gestalt
B Isomorphism
C Einsich
D Quasimorphism
E Equimorphism
Light from a distant star is focused by the lens onto the retina . With a pupil diameter of 3.0mm, the intensity of light falling on the retina is illustrated by the graph below . The spot illuminated on the retina is about 8micrometers in diameter. When star gazing on a very dark evening, the pupil diameter will expand to much larger than 3.0 mm.
a.With an expanded pupil diameter, what will happen to the total amount of light energy reaching the retina?
increase,decrease,or stay the same?
b. With an expanded pupil diameter, what will happen to the spread of the image on the retina?
increase,decrease,or stay the same?
c. With a decreased spread in image size, what will happen to the intensity of the central maxima?
increase,decrease,or stay the same?
With an expanded pupil diameter, the total amount of light energy reaching the retina will increase, the spread of the image on the retina will decrease, and the intensity of the central maxima will increase.
a. The total amount of light energy reaching the retina will rise with enlarged pupil diameter. The iris of the eye has an aperture called a pupil that controls how much light enters the eye.
More light can enter the eye when the pupil dilates, increasing the quantity of light energy that reaches the retina overall.
b. The spread of the image on the retina will narrow as the pupil diameter increases. The retinal image is spread out over a larger surface area as the pupil dilates, which reduces the size of the image.
c. The central maxima's intensity will rise as the spread of the image size decreases. The center maxima's intensity rises as a result of the light's greater concentration in a smaller region due to the lower image size.
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What are the factors that influence you to engage pre marital sex?
Teenagers may date outside of their parents' unions for a number of reasons, including as their self-perception, religious beliefs, financial status, media exposure, parental views, societal pressure, and cultural background.
Teenagers are more prone to turn to a sexual relationship for solace if they feel incomplete, inadequate, or underappreciated. However, those who lead happy lives, full of cherished family traditions, enjoyable pastimes, and, most importantly, unshakable love and acceptance, are less likely to act inappropriately during sexual encounters as a result of a preoccupation with fulfilment. Others who have a strong, increasing faith in God are more likely to have inherent tendencies to value and protect sex as a gift and to respect people rather than exploit them. Take note of these specific teen risk factors.
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What happens during meiosis to make new unique gametes?
Homologous chromosomes (one from each parent) pair along their lengths during meiosis. Chiasma points are where the chromosomes cross. The chromosomes split and reassemble at each chiasma, swapping some of their genes. Genetic variety is produced by this recombination.
Meiosis, often known as "lessening" since it is a reductional division, is a unique form of germ cell division in sexually reproducing animals that results in gametes like sperm or egg cells.
It comprises two rounds of division, producing four cells with just one copy of each chromosome as a final product (haploid). Furthermore, genetic material from the paternal and maternal copies of each chromosome is crossed over prior to division, resulting in novel combinations of coding on each chromosome.
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6. Imagine you begin your journey as a bead of sweat on an athlete at a track meet. What steps
might you take if you end your journey in the ocean?
Ocean swimming in triathlon can be intimidating, but knowing a few tricks and what to expect in an ocean environment can help make the experience bearable. A triathlon open ocean swim is a natural part of the sport.
Ocean swimming SportSwimming is a great aerobic activity, and swimming through waves in the ocean will help you improve your anaerobic fitness and swimming strength.
While there are risks to open water swimming, such as strong currents and unpredictable weather, it is a great way to get outside, explore nature, and improve your physical and mental health.
Here is a list of open water swimming gear that will help improve your performance and keep you safe in the water:
Wetsuit (thermal/neoprene material if swimming in the winter)Swimming capDry bag (to store car keys and your phone)Tow float (adds buoyancy)Emergency whistleSwimming socks / shoes / gloves (only needed in the winter)Swimming goggles (clear / mirrored or prescription lenses)A wetsuit and a cap can help your body adjust to the temperature of the water (especially when swimming in cold water). As a result, you can spend less time trying to acclimatize and more time swimming. You will also feel more secure and comfortable.
An emergency whistle ensures that you can summon assistance in an emergency, and a tow float can provide you with a brief resting spot to catch your breath. So, instead of leaving the water right away when you're tired, you can now recharge and catch your second wind.
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Light energy travels ______________km where plants capture the light energy and convert it to _______________ energy.
The Biosphere and other photosynthetic organic entities catch light energy that has voyaged 150 million km from the sun and convert it to substance energy that is put away in sugar and other natural particles. This transformation interaction is called photosynthesis.
Photosynthesis is the cycle by which plants use daylight, water, and carbon dioxide to make oxygen and energy as sugar.
The light-reliant responses utilize light energy to make two particles required for the following phase of photosynthesis: the energy stockpiling atom ATP and the diminished electron transporter NADPH. In plants, the light responses happen in the thylakoid layers of organelles called chloroplasts.
Photosynthesis is the synthetic cycle by which plants convert light energy (from the Sun) into substance energy as natural food particles like glucose. The photosynthetic responses happen in the chloroplasts, a particular organelle in plant cells.
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Describe how plants and animals each contribute to the survival?
Animals breathe in oxygen and emit carbon dioxide. Plants remove oxygen from the atmosphere while absorbing carbon dioxide. Animals can find food and refuge in plants.
A biotic community, or biota, made up of various plants, animals, and microbes coexists and is interconnected throughout the forest. There is direct or indirect interdependence between plants and animals. For instance, rodents eat plants and grains, and after being devoured by snakes, rats serve as a diet for eagles. Since the beginning of time, animals and plants have coexisted in a symbiotic connection. Just as plants provided the habitat for animals to thrive on land, animals also assisted plants in surviving by giving fertiliser through faeces and animal decomposition. Animals help pollinate plants and contribute carbon dioxide, which plants use as a source of energy. All these significant effects take place as a result of the interdependence of the plants and animals in the food chain.
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What happens to a cell if it accumulates too much damage?
Each subsequent cell division produces daughter cells with more accumulated damage. Eventually, all checkpoints fail and rapidly regenerating cells crowd out normal cells, leading to tumor growth.
When a cell accumulates too many changes (when its DNA is damaged and the repair machinery cannot repair it), it either stops dividing or self-destructs. It may become cancerous.
If the damage is irreparable, cells may undergo apoptosis or programmed cell death. This self-destruct mechanism ensures that damaged DNA is not passed on to daughter cells and is important in cancer prevention.
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Phototropism is a _____ tropism involving _____.
positive; water
positive; sunlight
negative; touch
negative; gravity
Answer:
The third to last.
positive;sunlight
The process of comparing currently experienced visual input with past visual
memories takes place in
9
a) the corpus callosum.
b) the thalamus.
c) the cerebellum.
d) association areas.
The process of comparing currently experienced visual input with past visual memories takes place in association areas.
The part of the cerebral cortex that processes visual information is called the visual cortex. The occipital lobe is where it is situated. The visual cortex receives sensory information coming from the eyes after passing through the lateral geniculate nucleus of the thalamus. The primary visual cortex, also known as visual area 1 (V1), Brodmann area 17, or the striate cortex, is the region of the visual cortex that receives sensory information from the lateral geniculate nucleus. The visual areas 2, 3, 4, and 5 (also known as V2, V3, V4, and V5 or Brodmann area 18 and all of Brodmann area 19) make up the extrastriate regions.
A visual cortex exists in the left hemisphere of the brain as well as the right.
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Which contains more potential energy, a large, complex molecule like a protein, or the smaller amino acid subunits of which it is composed
A large, complex molecule such as a protein contains more potential energy than the smaller amino acid subunits of which it is composed. This is because a protein is a polymer, meaning it is composed of multiple molecules linked together in specific ways.
When these molecules are linked together, the bonds between them store energy. This energy is refers to potential energy. When compared to the smaller amino acid subunits, the potential energy stored in the protein is much greater. This is due to the fact that the potential energy stored in a protein is the sum of the potential energy of all the individual amino acids.
Additionally, the bonds that join the amino acids together in a protein are much stronger than the bonds that link the amino acids in the smaller subunits. Therefore, proteins contain more potential energy than the smaller amino acid subunits of which they are composed.
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What physical process is important for breathing?
What are the 3 factors that cause natural selection?
The 3 factors that cause natural selection are given as, reproduction.
heredity, variation in characteristics.
The variation in phenotypic variance-driven individual survival and reproduction is known as natural selection. The generational evolution of a population's heritable features is a fundamental mechanism of evolution. Charles Darwin popularized the term "natural selection" by comparing it with artificial selection, which in his view is intentional while natural selection is not. There are variations in every community of creatures. This occurs in part as a result of the possibility of random mutations occurring in an organism's genome, which its offspring may inherit. Throughout their lives, people's experiences and genetic makeup combine to produce a variety of phenotypes.
A genome's environment consists of the cellular molecular biology, as well as other cells, individuals, populations, species, and abiotic factors.
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What is the probability of the offspring being purple and white flowers answer in percentage?
These would have phenotypes (PP and Pp) of 75% purple and 25% white (pp). The colour of the pea plant's blooms was one of the important characteristics Mendel examined.
When two heterozygous tall pea plants with purple flowers are crossed, it is possible that one of the offspring may be short with white flowers. This is similar to the monohybrid cross and depends on the individual probabilities of the traits. This means that there is a 1/4 chance that one of their progeny will be short and a 1/4 chance that one will have white flowers (in case of monohybrid cross). The genotypes of the offspring born from the union of a heterozygous purple flower (Rr) and a recessive white flower (rr) are (Rr), (Rr), (rr), and (rr). Consequently, half of the progeny have purple flowers (Rr), while half have white blooms (rr).
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1. According to the video on Energy Flow Through Ecosystems, energy flows from the sun to the __________, then to the primary __________, then to the secondary ___________, then to the ___________ consumer, and then to the apex ____________, and finally to the ___________.
2. Green plants are the only __________ that make their own food using sunlight, water, carbon dioxide through a process called _______________.
3. When the plant makes its food the carbon dioxide is changed from gas to _________ and the gas called __________is produced.
The second video which explains the food chains and food webs will help with the following exercises.
4. A food _______ shows feeding relationships between animals that are in more than one food chain.
Below are some feeding relationships between animals in a woodland:
· Worms, voles, and mice eat vegetation.
· Badgers eat worms, voles and mice.
· Shrews and badgers eat worms.
· Barn owls eat shrews, voles and mice.
5. The animals in a food web that are in the food chains above would be:____________________________________________________.
6. In a trophic __________ of a food web, the plants are in level ______ and the highest level is the ______.
7. Organisms that feed on plants and animals are called __________.
Which of the following best explains the differences in flower color of the African violets in the greenhouse
'An enzyme responsible for flower color does not fold correctly in cooler temperatures, and the greenhouse is warmest in the center' best explains the differences in flower color of the African violets in the greenhouse
Much like human skin color, violets' color is driven by proteins, especially in the case of violets, by enzymes. Enzymes (generally like proteins) need to function at a specific temperature. Outside this temperature, the enzyme cannot reach its correct form and eventually its function in vivo changes.
Regarding the above question, the plants were in a greenhouse that changed the natural temperature of the environment, so the violets' color change was due to the enzymes involved in flower color shrinking appropriately at low temperatures and the greenhouse being warm in the middle.
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Complete question :
An African violet grower observes that genetically identical African violet plants growing near the walls of the greenhouse have white flowers, that plants growing farther away from the walls have pale blue flowers, and that plants growing nearest the center of the greenhouse have dark blue flowers.
Which of the following best explains the differences in flower color of the African violets in the greenhouse?
A Warmer temperatures result in genotypic alterations, which result in flower color differences.
B The plants along the walls of the greenhouse are homozygous recessive and therefore have white flowers.
C An enzyme responsible for flower color does not fold correctly in cooler temperatures, and the greenhouse is warmest in the center.
D More light is available along the walls of the greenhouse, so the flowers need less pigment to absorb sunlight for photosynthesis.
If a cell has 12 pairs of chromosomes in G1 of interphase, how many chromosomes does it have during each of the following phases of the cell cycle
In G1 he has 12 chromosomes. In his S phase of the cell cycle, the amount of DNA doubles. The chromatids double, but the number of chromosomes remains the same. The number of chromosomes in G2 phase is equal to 12 chromosomes and the number of chromatids is 24.
The cell cycle consists of interphase (G 1 , S, and G 2 phases) followed by mitotic phases (mitosis and cytokinesis) and G 0 phases.
In the G1 phase of the cell cycle, each chromosome is composed of a single chromatid, and each chromatid is composed of a single double-stranded DNA molecule. Therefore, a cell with 12 chromosomes normally has 12 DNA molecules in G1.
Interphase begins in the G1 phase (G stands for Gap). During this stage, the cell makes various proteins required for DNA replication. In the S phase following the G1 phase, all chromosomes are replicated. After replication, each chromosome is made up of her two sister chromatids.
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In 3-5 sentences explain what mitosis does in fetal development. Include how the same DNA is in every cell, and how the fetus grows in size.
Mitosis is the process of cell division that occurs during fetal development, allowing the same DNA to be replicated in every cell.
Mitosis is a cell division process responsible for the growth and development of the fetus, as well as the formation of all the different types of cells that make up the body. During mitosis, the chromosomes in the nucleus of a cell are replicated and then separated into two identical sets, each of which goes into a separate daughter cell. This ensures that each new cell created during fetal development has the same genetic information or DNA as the original cell. As the number of cells increases, the fetus grows in size.
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The morphology of this cyst resembles Entamoeba histolytica, but lacks ingested red blood cells in its trophozoite form. What is this organism
The morphology of the cysts caused by Entamoeba hartmanni resembles Entamoeba histolytica, but lacks ingested red blood cells in its trophozoite form.
Amoebas are unicellular organisms which are able to alter their shape. They are usually found in water bodies like slow moving rivers, lakes and ponds. They are also pathogenic to humans and can cause diseases like amoebiasis.
Entamoeba hartmanni is a type of non-pathogenic amoeba. Its life cycle is very similar to the life cycle of Entamoeba histolytica but it lacks an invasive stage. When in its trophozoite form, it does not ingests red blood cells. The morphology of its cysts resemble that of Entamoeba histolytica. The motility of their cysts is also comparatively less rapid.
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A kidney demonstrating coarse asymmetric renal corticomedullary scarring, deformity of the renal pelvis and calyces, interstitial fibrosis, and atrophic tubules containing eosinophilic proteinaceous casts is most suggestive of:
The findings described are most suggestive of chronic kidney disease (CKD). This is a condition where the kidneys become unable to filter blood as efficiently as they normally would, leading to a buildup of waste products in the body.
CKD can be caused by a variety of different factors, including long-term exposure to toxins, certain medications, and certain medical conditions such as diabetes and hypertension. Chronic kidney illness can cause atrophic tubules filled with eosinophilic proteinaceous casts, asymmetric corticomedullary scarring, distortion of the renal pelvis and calyces, and interstitial fibrosis in the kidney.
These findings suggest that the kidney is not functioning properly, and that there has been long-term damage to the organ. The specific cause of the CKD can only be determined after further testing. Treatment options vary depending on the cause and the severity, but may include medications, lifestyle changes, and dialysis.
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What are 3 differences between natural selection and selective breeding?
Environmental conditions, like as harsh habitats or competition for mates, that restrict survival and reproduction are what drive natural selection. The term "artificial selection" also applies to selective breeding.
Selective breeding is an artificial process where people step in and choose certain organisms to mate, whereas breeding is a natural process of mating between two species.
Three contrasts exist between selective breeding and natural selection:
Human involvement drives artificial selection. The selective pressure of the environment controls natural selection.Breeders are in charge of artificial selection. On Earth, biological diversity is greatly increased via natural selection.Contrarily, artificial selection makes it easier for the breeder to pass on desired traits.Learn more about breeding Visit: brainly.com/question/13614055
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The B vitamins play major roles in ____. Question 45 options: maintaining skin health and decreasing oxidative damage to skin cells decreasing free radicals and increasing epinephrine from the brain facilitating energy production and making red blood cells increasing fatty acid mobilization from adipose tissue and serving as neurotransmitters
The B vitamins play major roles in increasing fatty acid mobilization from adipose tissue and serving as neurotransmitters.
The B nutrients assist enzymes in our our bodies do their jobs and are vital for a huge variety of mobile functions, like breaking down carbohydrates and transporting vitamins at some point of the body. The B nutrients play an inter-associated function in maintaining our brains jogging properly. Perhaps the maximum famous of all of the B nutrients, B12 is essential for neurological feature, DNA production, and crimson blood cellular improvement. Vitamin B12 is wanted to shape crimson blood cells and DNA. It is likewise a key participant withinside the feature and improvement of mind and nerve cells. Vitamin B12 binds to the protein withinside the ingredients we eat.
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Net redistribution of extracellular fluid by bulk flow from the plasma compartment into the interstitial fluid compartment is referred to as
Filtration is the term used to describe the net redistribution of extracellular fluid by bulk flow from the plasma compartment into the interstitial fluid compartment.
The process of forcing fluid and dissolved chemicals past capillary walls and into the interstitial fluid is known as filtering. The hydrostatic pressure gradient also referred to as the hydrostatic pressure difference between the plasma compartment and the interstitial fluid compartment, is what propels this process.
The filtration process is essential for maintaining the balance of fluids and electrolytes in the body and for the removal of waste products.
Filtration is one of the three basic mechanisms that contribute to the movement of fluid and dissolved substances across the capillaries. The other two mechanisms are diffusion and osmosis.
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On a hot summer day you can attend a baseball game or sit on your favorite beach and read a book without
immediate threat of heat exhaustion because the water in your cells resists rapid changes in temperature. This
is because it requires a great deal of energy to break
This is because it requires a great deal of energy to break large number of hydrogen bonds between water molecules.
The body reacts to an excessive loss of water and salt, typically through excessive sweating, by producing heat exhaustion. The elderly are especially susceptible to heat exhaustion. high blood pressure sufferers. those engaged in hot-weather work.
Not a covalent link to a hydrogen atom, hydrogen bonding is an unique kind of dipole-dipole interaction between molecules. It comes about as a result of the attraction between two extremely electronegative atoms, such as N, O, or F, and a hydrogen atom that is covalently bound to one of them.
A water molecule has a bent overall structure and is made up of two hydrogen atoms bound to an oxygen atom.
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SCIENCE PLEASW HELP ME
According to the cell theory, cells make up every biological entity; they are the basic building block of life, and all life originates from earlier forms of life.
What are the three tenets of the theory of cells?1) Cells make up all living things. 2) All of the existing cells were created by other live cells. 3) The simplest form of life is the cell.
Who coined the term "cell theory" and what is it?Theodor Schwann put forth the classic cell theory in 1839. This theory consists of three components. Including the first section, cells make up all organisms. The basic building blocks of life are cells, according to the second section.
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Each gram of fat you consume provides over twice as many calories as a gram of protein or carbs. What does this tell you about the body's ability to burn off these fuels? which would require the most energy to burn?
Since each gram of fat provides over twice as many calories as a gram of protein or carbs, this indicates that the body needs almost double the energy in order to burn each gram of fat and therefore the body needs to workout extra to achieve that.
Fats are the fatty acids that are present stored inside the body of an organism. The fats take more time to burn off and yields around 9 calories when each gram of fat is burned off.
Calories are the energy content present in the food. The higher the calories the higher energy it provides to the body. This energy gets stored in the body in forms of fats.
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if a cell that contains 20% NaCL is placed in a solution with a concentration of 70% water, what will likely happen to the cell It will shrivel, It will swell, It will stay the same
If a cell that contains 20% NaCl is placed in a solution with a concentration of 70% water, what will likely happen to the cell is that it will shrivel because the solution is a hypertonic solution.
The correct option is A.
What are hypertonic, isotonic, and hypotonic solutions?A hypotonic solution is a solution that has a lower concentration of fluid, sugars, and salt than blood.
A hypertonic solution is a solution that has a higher concentration of fluid, sugars, and salt than blood.
An isotonic solution is a solution that has a similar concentration of fluid, sugars, and salt to blood.
Cells react differently when placed in hypertonic, isotonic, and hypotonic solutions.
When cells are placed in a hypertonic solution, they shrivel.
When cells are placed in a hypotonic solution, they swell.
When cells are placed in an isotonic solution, they stay the same.
A cell that contains 20% NaCl is placed in a solution with a concentration of 70% water is placed in a hypertonic solution.
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What is rhe difference between Reforestation and Reclamation?? Answeres ASAP
Using your prior knowledge in the background information about the Asian ladybug, fill in each of the