Which level of consumer has access to the smallest supply of energy?

A. Primary
B. Secondary
C. Tertiary
D. Quaternary

Please select the best answer from the choices provided.



Answer :

Final answer:

Tertiary consumers have the least energy access in a food chain due to energy transfer inefficiencies.


Explanation:

Tertiary consumers at the fourth trophic level have access to the smallest supply of energy in a food chain. They receive only 0.1% of the energy available at the initial producer level, due to the 10% efficiency transfer between each trophic level.


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