Question

living things need food to survive. plants make their own food through the process of photosynthesis, and animals get food by eating plants and/or other animals.
through the process of cellular respiration, living things release energy from the sugar found in their food to carry out their life processes. the other substances found in the food may be excreted as waste or are most often used for
a. initiating reproduction.
b. storing and eliminating body tissues.
c. promoting mutations.
d. building and repairing cell parts.

Explanation:

The question is about the use of substances from food (after cellular respiration) in living things. Option D, "building and repairing cell parts," is a key use of nutrients from food. Food provides materials (like proteins, lipids, carbohydrates) that are used to synthesize new cell components or repair damaged ones. Option A (inhibiting reproduction) is incorrect as food supports reproduction. Option B (storing and eliminating body tissues) is not a primary use; elimination is for waste. Option C (promoting mutations) is incorrect as food doesn't promote mutations (mutations are genetic changes, not directly caused by food use). So the correct answer is D.

Answer:

D. building and repairing cell parts