C; to stop pathogens with light harming the host cell
Answer:
D. The digestive system breaks food down into the molecules that can be used in respiration.
Explanation:
Answer:
B. a nucleus
Explanation:
cell walls and chloroplast are both found in plant cells, not in animal cells
I think this one <span>best describes computer modeling in biology: </span>a. A computer is used to calculate a scale of a lake’s turbidity due to algal growth from too much nitrate pollution in the water.
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