The role of respiration is to take in oxygen and push out carbon dioxide. The respiration takes place in the mitochondrian which is found in the cytoplasm.
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Guessing it’s D. Hope this was helpful!
Explanation: One of the highest probabilities is because of the bird in the front (the one in the point of the v) takes the command in leading to others in the flock to there location which explains for that as in there is no new members of there flock doing so.
Another reason could be is air resistances and helps the flock fly.
Answer:
it is nerve that carries sensory information towards CNS (centeral nerve system)
