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Subject Test Biology

Question 7 of 24

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SAT Subject Test

The first items in the Biology E/M test are arranged in sets with common answer choices. These items appear in the core section of the test. Remember, these are not MATCHING challenges — each answer choice can be used once, more than once, or not at all.

Organisms that comprise the greatest mass of living substance (biomass) in a terrestrial food chain

Select an Answer

Decomposers (e.g., bacteria)

Correct Answer: 
No

Producers (e.g., grasses)

Correct Answer: 
Yes

Primary consumers (e.g., mice)

Correct Answer: 
No

Secondary consumers (e.g., snakes)

Correct Answer: 
No

Tertiary consumers (e.g., hawks)

Correct Answer: 
No

The correct answer is Producers (e.g., grasses). Organisms that comprise the greatest biomass in a terrestrial food chain are the producers. Net productivity (photosynthesis minus respiration) creates biomass.

Question Difficulty: 
easy