Which of the following is true?
a. heterotrophs to rely on light for photosynthesis
b. autotrophs produce their own nutrients via photosynthesis or chemosynthesis?
c. thermophile are often able to survive in environments of high acidity.
d. autotrophs rely on consuming other organisms for nutrients.

The answer is B.

A. False. Heterotrophs need to consume other organisms to make energy.

C. False. Thermophiles (notice the prefix 'thermo') are organisms that thrive at higher than normal temperatures.

D. False. Autotrophs make their own energy. They don't consume it from other sources.

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