Question

phytoplankton (marine algae) obtain their energy from the sun. what is their place in the food web? (1 point)
○ second trophic level because it is a producer
○ first trophic level because it is a producer
○ second trophic level because it is a consumer
○ first trophic level because it is a consumer

Explanation:

Phytoplankton are producers as they perform photosynthesis to make their own food using sunlight. Producers occupy the first trophic level in a food web. Consumers (which eat other organisms) are at higher trophic levels, so options with "consumer" are incorrect. Producers are at the first, not second, trophic level, so the correct option is the one stating first trophic level as a producer.

Answer:

B. first trophic level because it is a producer