Question

11. CO

2
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with labeled carbon was bubbled into a well-lit aquarium filled with pond water. In what order will the labeled carbon appear in various organisms in the aquarium? A. herbivores, carnivores, producers B. producers, herbivores, carnivores C. producers, carnivores, herbivores D. herbivores, producers, carnivores E. All organisms will take up radioactive carbon simultaneously.

Answer 1

B. producers, herbivores, carnivores.

Step-by-step explanation:

The carbon, in the form of CO2, will first be taken up by the producers in the aquarium, such as aquatic plants or phytoplankton, through the process of photosynthesis.

Next, herbivores in the aquarium, such as small fish or zooplankton, will consume the producers as their source of food.

Lastly, carnivores in the aquarium, such as larger fish or predatory organisms, will consume the herbivores.

Through this feeding relationship, the labeled carbon will be transferred to the carnivores.