Plants . A. release oxygen into the atmosphere

B. release carbon dioxide into the atmosphere

C. use oxygen to create food and energy

D. don't rely on the atmosphere like animals do

A

Explanation:

Plants use photosynthesis to capture carbon dioxide and then release half of it into the atmosphere through respiration. ... Plants also release oxygen into the atmosphere through photosynthesis.

A

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the correct answer is c   with the systems

genetic variation can be caused by mutation (which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis (which reshuffles alleles within an organism's offspring).