Mendel conducted research on inheritance using peas. Peas were selected because they had previously been used in research that was comparable, because they are simple to cultivate, and because they can be replanted annually.
Pea flowers typically self-pollinate because they contain both male and female parts, which are referred to respectively as stamen and stigma. Because of the process of self-pollination, offspring can be produced from a single plant even though the flowers do not open until later. Peas can also be manually cross-pollinated.
To do this, simply open the pea flower buds, remove the pollen-producing stamen, and then apply pollen from one plant to the stigma of another plant. This will prevent the peas from pollinating themselves.
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external features used to classify plants
External features that used to classify plants :-
1.Leaf shape and arrangement: Leaves can be classified based on their shape, such as being oblong, elliptical, or lobed, as well as how they are arranged on the stem, such as being alternate or opposite.
2.Flower structure and color: The shape and color of flowers are used to classify plants. For example, some plants have large, showy flowers with bright colors, while others have small, inconspicuous flowers.
3.Stem characteristics: The shape and texture of a plant's stem can also be used to classify it. Some plants have woody stems, while others have herbaceous (non-woody) stems.
4.Fruit and seed characteristics: The size, shape, and color of a plant's fruit and seeds can be used to classify it. Some plants have large, fleshy fruits, while others have small, dry seeds.
5.Bark characteristics: Trees can be classified based on their bark. Some have rough, scaly bark while others have smooth, shiny bark.
6.Root system: Some plants have deep roots, while others have shallow roots. This is a useful characteristic in identifying certain types of plants.
7.Habitat: Some plants are aquatic while others are terrestrial and this is a valuable trait in identifying them.
8.Size and form: Some plants are shrubs, others are trees, and others are herbaceous, this feature also helps in identifying them.
Complete question:-
What are the external features that used to classify plants?
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need this answer quick please thanks
Answer:
Meiosis
Explanation:
Meiosis results in 4 cells.
What is the name for the vertebrae that is in the lowest portion of the spine?
O thoracic
O lumbar
O cervical
O clavicle
Answer:
I believe it is b)
Explanation:
Answer:
it's B hope this helps have a nice day
An mRNA sequence of AUG CCG GUC will produce what amino acid combination
A student constructs a Venn diagram to compare the organelles in plant and animal cells. One circle is labeled animal only, the other circle is labeled plant only, and the overlapping section is labeled both. Which organelle should be listed under “both” in the diagram
The organelle that will be listed in both is nucleus. The correct option is A.
What is a cell?The smallest unit that can exist on its own and makes up all living things as well as the body's tissues is the cell in biology.
The cell membrane, the nucleus, and the cytoplasm are the three primary components of a cell. The substances that enter and leave the cell are governed by the cell membrane, which encloses the cell.
Because they are both eukaryotic cells, plant and animal cells share many structural similarities.
The nucleus, mitochondria, endoplasmic reticulum, golgi apparatus, lysosomes, and peroxisomes are just a few membrane-bound organelles that are present in both of them.
Thus, the correct option is A.
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Your question seems incomplete, the complete question is:
A student constructs a Venn diagram to compare the organelles in plant and animal cells.
Venn Diagram of Plant and Animal Cells
A Venn Diagram is shown. One circle is labeled Animal only, the other circle is labeled plant only, and the overlapping section is labeled both.
Which organelle should be listed under “Animal Only” in the diagram?
A. nucleus
B. centriole
C. vacuole
D. cell wall
What are snails and clams classified as?
The snails and clams are classifies as molluscs as they belong to the phylum Mollusca.
Snails are organisms of the phylum Mollusca. They are small creatures identifiable by the presence of an outer spirally coiled shell. They can be found both on land and in water. They can locomote by the presence of a single foot formed only of the muscles.
Mollusca are the second largest group of invertebrates in the animal kingdom. Most of its organisms are aquatic. The presence of a calcareous crust is an important feature of the trunk. Examples of some organisms are oysters, clams, etc.
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For each of the following, circle the word that does not belong belong with the rest and then in ONE complete sentence, explain why it does not fit.
1. Coal, Oil, Solar, Power, Natural Gas
2. Biodegradable, Recycling, Sustainability, Deforestation
Answer:
1. Solar power - because the other words are non-renewable resources, but solar power is a renewable resource
2. Deforestation - because it is unsustainable and bad for the environment, unlike the other words
Coal, Oil, Solar, Power, and Natural Gas: "Power" does not fit with the rest because it is not a specific type of energy source like the other four options. Biodegradable, Recycling, Sustainability, Deforestation: "Deforestation" does not fit with the rest because it is an activity that harms the environment.
What is a biodegradable substance?Biodegradable substances are materials that can be broken down by natural processes into their basic components without causing harm to the environment. Biodegradable substances can be broken down by microorganisms, such as bacteria, fungi, and other living organisms, into natural substances like carbon dioxide, water, and biomass.
Hence, coal, oil, solar, power, and natural gas—"power"—do not fit with the rest because it is not a specific type of energy source like the other four options. Biodegradable, Recycling, Sustainability, Deforestation: "Deforestation" does not fit with the rest because it is an activity that harms the environment.
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Help me in this question pls (also these two picture are one question)
9. If your goal is to produce white butterflies, is it faster to wait for natural
selection to take place or to use artificial selection? Why?
Answer:
Artifical selection would be much quicker because you can breed specific butterflies to get your desired result. Natural selection may produce undesirable results, this is because you cannot choose which butterflies to breed. So you may end up with other coloured butterflies instead.
8.A patient receiving electroconvulsive therapy most likely has which of the following conditions?
(1 Point)
A.mild depression
B.acute mania
C.migraines
D.sleeplessness
Please help me with this!!
The answers to the table are genotype, phenotype, trait, heredity, chromosome, allele, in that sequence.
How does a chromosome explain work?
a component that can be found in a cell's nucleus. Proteins and DNA are arranged into genes on a chromosome. There are typically 23 pairs of chromosomes in each cell.
What is a chromosome's primary purpose?
DNA may be precisely duplicated during these cell divisions thanks to chromosomes. So, once more. Our cells' nuclei include chromosomes, which enable precise DNA duplication during cell division. This guarantees that our internal processes go smoothly and effectively.
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Which of the following types of data would be required in order to consider the hypothesis that acid precipitation caused the loss of the salamander
The type of data that would be necessary to consider the hypothesis that acid precipitation caused the loss of the salamander were, Acids that enter the atmosphere primarily affect ecosystems located less than 100 kilometers from the source of the pollution. Corrects answer: letter C.
Acid precipitation is known to affect ecosystems that are located near the source of the pollution. This is because acid precipitation can be carried through the atmosphere and deposited in the surrounding areas, affecting the habitats and species that are found there.
By determining the distances between the source of the pollution and the ecosystem where the salamander was lost, it can be determined if acid precipitation was likely to be a factor in its loss. Data would also be needed on the types and concentrations of acids that are found in the air near the source of the pollution and the salamander's ecosystem, as well as the pH levels in both areas.
Which of the following types of data would be required in order to consider the hypothesis that acid precipitation caused the loss of the salamander?
A) sulfuric acid and nitric acid from the burning of fossil fuels are the major causes of acid precipitation.
B) larger organisms lost from freshwater ecosystems because of acidification may not return even decades after ph values have returned to normal.
C)Acids that enter the atmosphere primarily affect ecosystems located less than 100 kilometers from the source of the pollution.
D) Though lakes are very sensitive to acidification, their ph can return rapidly to normal values.
E) regulation of emission sorces has raised the ph of precipitation in many parts of the eastern united staes in the last two decades.
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3. The action of the decomposers leads to loss of food items. Explain, how nature
benefits from the same action.
Nature benefits from the same action are Biodegradation.
What is a Biodegradable substance?Biodegradable is a substance which is capable of being decomposed by bacteria or other living organisms.
Example: plants, dead animals
A pollutant is a substance that when introduced into the environment has adverse effects on the environment or people.
Thus, this could be the answer.
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Occasionally cells stop dividing and enter another phase, G 0 . If you damage your liver, new liver cells can be produced to replace up to 75% of the liver. However, if you sustain brain dam-age, your body does not produce new brain cells. Explain this observation using what you have learned about the cell cycle.
Cell division is essential for growth and development of organisms. Cell division is regulated by the cell cycle, which consists of four phases: G1, S, G2, and M.
During G1, the cell grows and performs its normal activities. The S-phase is when the cell makes DNA. The cell gets ready to divide during G2. The cell divides into two daughter cells during the M-phase.
Occasionally, cells enter a resting phase called G0. This phase is characterized by the cell not actively growing and dividing. Cells in this phase are usually post-mitotic, meaning they are not planning to divide anymore and have exited the cell cycle.
Liver cells can divide and enter the cell cycle and produce new cells if the liver is damaged, up to 75%. This is possible because liver cells are bi-potent, meaning they have the potential to divide and create new liver cells. On the other hand, brain cells are post-mitotic and cannot enter the cell cycle and divide. Therefore, if the brain is damaged, it cannot produce new brain cells since they are not able to divide.
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the sympathetic trunks are located immediately lateral to the ______.
The sympathetic trunks are located immediately lateral to the vertebral bodies of the vertebral column.
Sympathetic trunks are two ganglionated nerve trunks that form the bundle of nerve fibers paired together and run from the base of the skull to the coccyx.
This sympathetic trunk lies just lateral to the vertebral bodies for the entire length of the vertebral column.
Sympathetic trunks are a fundamental part of the sympathetic nervous system while also being a part of the autonomic nervous system. They allow both superior and inferior nerve fibers to travel to the spinal cord to commence the regulatory actions in the body.
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Only about _____ of genes are different from one person to the next. Those that are different are called _____.
The correct answer is A; 1%, alleles, A gene mutation is a change that occurs in one or more genes (myoo-TAY-shun). Certain genetic mutations can cause genetic disorders or illnesses.
The human genome is substantially same in all individuals. There are, however, variations across the genome. This genetic variety accounts for around 0.001% of each individual's DNA and results in differences in appearance and health. People who are closely related share more DNA.
There are genes that are dominant and recessive. The most common interaction between alleles is a dominant/recessive relationship. When one allele of a gene effectively overrules the other (recessive) allele, the dominant allele is said to exist. Correlations between dominant and recessive genes can be seen in eye color and blood type.
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Full Question ;
Only about _____ of genes are different from one person to the next. Those that are different are called _____.
A) 1%, alleles
B) 20%, alleles
C) 1%, traits
D) 20%, traits
infer complete the statement by selecting the correct terms the coal deposits currently being used as an energy resource formed
To infer or complete the statement by selecting the correct terms the coal deposits currently being used as an energy resource formed fossil fuels.
How does energy resource gotten from coal?The formation of coal happened several millions of years through a process known as carbonation. In this process, dead vegetation is converted into carbon-rich coal under very high temperature and pressure.
Energy from coal is typically obtained by burning the coal to produce steam, which then drives a turbine to generate electricity. The steam is created by heating the water in the coal boiler to high temperatures, which causes it to turn into steam. The steam then drives a turbine, which is connected to a generator, and the generator converts the mechanical energy from the turbine into electrical energy. This process is called thermal power generation.
Therefore, the correct answer is as given above
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The complete question goes thus:
Infer or complete the statement by selecting the correct terms, the coal deposits currently being used as an energy resource formed...............
Directions: Select each correct answer. More than one answer may be correct.
During which of these processes is oxygen consumed?
when forests are burned to clear land for farming
when aerobic bacteria break down dead algae in a pond
when plants perform photosynthesis
when plants or animals perform aerobic cellular respiration
If you were to set up a PCR reaction (in vitro DNA synthesis) with a DNA template, primers,DNA polymerase, dATP, dGTP, dCTP, dTTP and a small amount of ddATP, what would be the result
After the insertion of any adenine base, DNA synthesis may be interrupted (at random). DNA molecules of many different lengths would be produced.
Deoxyribonucleic acid (DNA) is a polymer made up of two polynucleotide chains that coil around one another to create a double helix. The polymer contains genetic instructions for all known organisms and viruses' genesis, functioning, growth, and reproduction.
Nucleic acids include DNA and ribonucleic acid (RNA). Nucleic acids, together with proteins, lipids, and complex carbohydrates (polysaccharides), are one of the four primary categories of macromolecules required for all known forms of life. Because they are made up of simpler monomeric units called nucleotides, the two DNA strands are known as polynucleotides.
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This is English can I still get help!
Answer: I believe the order of answers should be 2, 3, 4.
Explanation:
Part A seems like it is describing a strange character. Part B is appearing to depict a mysterious event. Part C describes a positive interaction.
(If this is wrong, I am terribly sorry, but I do hope this helps!)
The correct аspect of аn Аmericаn myth:
1. Rip now felt а vаgue аpprehension steаling over him; he looked аnxiously in the sаme direction, аnd perceived а strаnge figure slowly toiling up the rocks, аnd bending under the weight of something he cаrried on his bаck. ⇒ Remarkable, strange, or exaggerated characters (2) and positive message about a nation and its people (4)
2. Her deck once red with heroes’ blood. Where knelt the vаnquished foe. When winds were hurrying o’er the flood. Аnd wаves were white below. ⇒ Set in the past, often remote areas and exiting times (1)
3. Thanks, thаnks to thee, my worthy friend, for the lesson thou hаst tаught! Thus аt the flаming forge of life, our fortunes must be wrought: thus on its sounding ⇒ Incredible, heroic, impressive, magical or mysterious events (3)
The story "Rip Vаn Winkle" is а greаt exаmple of Аmericаn Mythology becаuse of the remаrkаble chаrаcters, the incredible аnd unbelievаble events thаt occur, аnd the fаct thаt it gives hope аnd presents positive messаges аbout Аmericа through the long journey Rip tаkes in the story.
The poem titled 'Old Ironsides' penned by Oliver Wendell Holmes explores the theme of 'pride in bаttle аnd deаth.' The speаker feels proud of receiving аn honorаble deаth. The poem is centered аround а ship thаt served in numerous bаttles but still doomed to be discаrded.
The quote from "Longfellow’s Blacksmith" tells about the Blаcksmith understаnds thаt he cаn forge his own future, by аny method he deems fit. А life worth living will require thousаnds of hаmmer swings, but he is in full control of how thаt hаmmer is swung.
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does the type of potting the soil used in planting affect how fast the plant grows
Answer: Yes, the type of soil does effect how the plant grows.
Explanation:
When examining the genetic code, it is apparent that ________.
O there are 44 stop codons because there are only 20 amino acids
O AUG is a terminating codon
O there can be more than one codon for a particular amino acid
O the code is ambiguous in that the same codon can code for two or more amino acids
O there can be more than one amino acid for a particular codon
When examining the genetic code, it is apparent that: There can be more than one codon for a particular amino acid.
The genetic code is a set of rules used by living cells to convert information held in genetic material (nucleotide triplet sequences, or codons) into proteins.
The ribosome joins proteinogenic amino acids in the order prescribed by messenger RNA (mRNA), transporting amino acids and reading the mRNA three nucleotides at a time. The genetic code is relatively similar among all creatures and may be stated in a simple table with 64 items.
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2 points
3. Which of the following are examples of sensory structures found in
sharks? *
Spiracles and Nostrils
Lateral line and Ampullae of Lorenzini
Claspers and Spiracles
Lateral line and Claspers
Describe how removing an organism from a food web can impact the entire ecosystem.
Which one of these processes is not a chemical weathering process?
Carbonation
Hydration
Oxidation
Frost Wedging
Answer:
frost wedging
Explanation:
Answer:
Frost Wedging
Explanation:
Bcoz Expect Frost Wedging all of remaining are chemical weathering process...
Will mark brainliest
Which of the following statements is most accurate and explain your choices
A. Human and apes have a common ancestor
B. Humans evolved from apes
Answer:
I honestly don't believe that we evolved from apes but alot of scientists will say we did. So I guess A
The form allows for an object to carry out a specific _________ .
responsibility
function
job
task
Answer:
responsibility
Explanation:
im not pretty sure if that's right but I hope that helps
The form allows for an object to carry out a specific function. Thus, the correct option is B.
What is Function?A Function may be defined as an activity that is accomplished with a specific intention.
Each object allows a form that carries out a specific function intentionally to meet the desired outcome.
Therefore, the correct option for this question is B.
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What are 4 examples of natural selection?
Answer: rat snake is one the second one is peppered moth warrior ant and last but not least is peacock
Explanation: Because there are some type of animals tat are for the nature selection some are insect insects like moths
What happens in a global convection cell?
A. Cool air moves upward in the center; warm air moves downward at
the edge.
O
B. Warm air and cool air move in circles, causing hurricanes and
tornadoes.
O
C. Cool air and warm air repeatedly collide, pushing air up and
causing storms.
O
D. Warm air moves upward in the center, cool air moves downward at
the edge
In a global convection cell the correct option is (C). Cool air and warm air repeatedly collide, pushing air up and causing storms.
In a convection cell, the alterations are profound. The air molecules start to move and vibrate as the air at the cell's base heats. As a result, they start to spread out and collide, which reduces the density of the air parcel.
Convection is a pattern that occurs on a large scale. On a smaller scale, it also takes place within certain storms. However, because to Earth's rotation, the air that travels north and south from the equator likewise revolves with the Earth. Northbound air makes a right turn. Southbound air turns to the left.
Less dense air rises and moves away from the equator in a global convection cell. And the dense air from the pole flows backwards toward the equator as it descends. The poles can be thought of as the longitudinal edges of the earth's sphere, with the equator acting as its centee. The Coriolis Effect, a result of the spinning of the Earth, also aids in this airflow.
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What term is used to describe an organism that has two identical alleles for a trait both alleles either upper case or lower case )?
Diploid organisms is used to describe an organism that has two identical alleles for a trait both alleles either upper case or lower case .
Each chromosome in diploid cells has two identical copies, typically one from the mother and one from the father. Mammals are nearly all diploid organisms. The only known exceptions are the presumed tetraploid (having four chromosomal sets) plains viscacha rat and golden viscacha rat (as of 2004).
The huge genome sizes of these two rodents are best explained by the amplification and dispersion of repetitive sequences, according to some genetic studies, which reject any possibility of polyploidy in mammals as implausible. A small percentage of the cells in all healthy diploid individuals show polyploidy. 46 chromosomes can be found in human diploid cells.
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