Answer: If it is almost impossible for a favorable trait to get passed down to offspring due to reproductive struggles, the species would not be able to undergo natural selection due to a lack in appearance of a trait.
Explanation:
If there are only two organisms with the adaptation, both of which lack any reproductive abilities, the odds of most of the species <em>not</em> dying out are very low. Only those two will have the adaptation and they rest will die out.
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Answer:
to assist other lymphocytes
to kill cells infected with a virus or cancer
to help in the body’s immune response
Explanation:
Answer:
C. Carbon dioxide is a waste in cellular respiration in BOTH plants and animals
Explanation:
Cellular respiration occurs in animals and plants. It breaks down sugar in the presence of oxygen to release energy in the form of ATP. This process releases carbon dioxide and water as waste products.
