The answer your looking for is 20 Amino Acids.<span>
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A energy pyramid is B. A diagram that shows the amount of energy that moves from one feeding level to another in a food web.
Answer A. (A community of organisms where there are several interrelated food chains) would be the definition of a food web. Answer C. could be a variety of answers.
Example:
The answer is tubulin cyclin and a
cyclin-dependent kinase
The two components that
constitute an active maturation-promoting factor (MPF) is tubulin cyclin and a
cyclin-dependent kinase. MPF stimulates the mitotic and meiotic phases of the
cell cycle. It has the ability to phosphorylate target proteins at a specific point
in the cell cycle and thereby control their ability to function.
Answer:
The correct answer is spirochete and cyanobacteria
Explanation:
The endosymbiotic theory states that the eukaryotic cells are evolved from prokaryotic cells when a larger prokaryotic cell engulfed the smaller prokaryotic cell. The presence of chloroplast and mitochondria supports this theory.
After genetic analysis of chloroplast DNA, it was seen that it closely resembles the cyanobacterial DNA which shows that ancestor host cell gained photosynthetic ability from endosymbiosis with a cyanobacterial ancestor.
It was also seen that ancestral host cells engulfed spiral bacteria called spirochetes which helped them to produce cilia for example tail on sperms is the result of endosymbiosis of spirochete. So the right answer is spirochete and cyanobacteria.
