Construct an explanation about the role of

1 answer:

5 0

Photosynthesis has a role in the cycling of matter and flow of energy into and out of organisms. The flow of energy and cycling of matter can be traced. The chemical reaction by which plants produce complex food molecules (sugars) requires an energy input (i.e., from sunlight) to occur.

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How do unsaturated phospholipid fatty acid tails affect plasma membrane fluidity?

Sladkaya [172]

A phospholipid is made of glycerol, two the fatty acid tails, and a phosphate-linked head group. More unsaturated fatty acids it means less tightly packed phospholipids its results to the greater membrane fluidity. Unsaturated fatty acids are naturally occurring, meaning that the remaining hydrogen is on the same side of the molecule and result in a bending of the hydrocarbon chain.

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Diffusion occurs because of the ________________________ of molecules.

rosijanka [135]

Diffusion occurs because of the movement of molecules from the region of higher concentration to the region of lower concentration. This movement of molecules occurs due to a thermal motion. Diffusion normally occurs between two compartments having difference in concentration. In case of fluid it moves from the region of higher concentration to the region of concentration until a balance is reached. The process of diffusion is very important for the humans as well. The oxygen that humans breathe in gets diffused with the blood.

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Darwin often used the phrase "_[blank]_" to suggest that species must have descended from preexisting species and that changes i

dybincka [34]

The answer is descent with modification.
Descent with modification practically means that a species have changed appearance wise over long periods of time to adapt to their environments better.

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2 years ago

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The diagram below represents a flower, the reproductive structure of some plants. Most

Evgen [1.6K]

Answer:

The stigma, a female structure which collects pollen and passes it to the ovary

Explanation:

The structure represented by the letter A in the diagram is the stigma.

The stigma of a flower represents part of the female reproductive structure. The surface of a mature stigma is sticky and as such, it is able to attract pollen grains from the anther. A pollen that lands on the stigma germinates and its pollen tube grows through the style of the stigma down to the ovule where one of the sperm cells of the pollen fertilizes the egg cell of the ovule to form a diploid zygote and the other sperm cell fuses with the polar nuclei of the ovary to form a triploid cell that eventually becomes the endosperm.

The sepal and the petal are labeled as D and C in the diagram respectively while the stamen is made up of B and H.

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Which evidence from the sea floor shows that tectonic plates move

blondinia [14]

the sea floor is youngest near a mid 
ridge and farther away.

i think this is the answer

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