Well lets see here, The definition of population is a particular section, group, or type of people or animals living in an area or country. So it would be D.<span>
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Glycolysis produces two molecules of pyruvic acid that undergoes a process allowing it to enter the kreb (citric acid) cycle that eventually produces ATP molecules from the electron transport chain
Any characteristic, whether a physical trait, a behaviour, a physiological adaptation etc can make an organism more or less likely to survive in a particular environment.
A dark colour could help a rabbit survive if it lives in a dark forest, because predators can't see it so well, but it would be less likely to survive in the arctic, where the environment is all white and it would show up.
In terms of the characteristics, think about: does it help the organism get food? Does it help protect the organism from predators? If it does, that organism is more likely to survive, and pass the characteristic on to it's offspring. If a bacterium has a characteristic of not being killed by antibiotics, this will help it to survive and breed.
A.) carbohydrates are large molecules made up of monosaccharides and are used by organisms for energy storage.
Hope I helped! :)
I believe vestigial structures are evidence of evolution because organisms inherit anatomy from their ancestors.
Hope that helps.