Answer: It is the key to blocking infections
Explanation: I hope this is right :)
Answer:
Intestine is the lower part of the alimentary canal from the end of the stomach to the anus.
Explanation:
Answer:
Increased fitness of large-beaked birds, leading to natural selection
(Why: Birds with larger beaks are better able to survive in the new enviornment)
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The answer is nucleus (structure A)
because nucleus DNA would be destroyed
