Final answer:
The correct answer is b. tree. Autotrophs are organisms that can produce their own food. Trees are autotrophs that use photosynthesis to convert sunlight into energy and produce their own food.
Step-by-step explanation:
The correct answer is b. tree. An autotroph is an organism that can produce its own food using sunlight or chemicals. Trees are examples of autotrophs because they use photosynthesis to convert sunlight into energy and produce their own food. Mushrooms, deer, and wolves are examples of heterotrophs, organisms that obtain food by consuming other organisms.
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