Question

which statements are true for all organisms at the first trophic level? select all correct answers. they are eaten by organisms at higher trophic levels. they obtain energy from nonliving sources. they are represented at the top of any ecological pyramid. they are the most likely apex predator in their ecosystem. altogether, they contain more energy than organisms at higher trophic levels.

Explanation:

Organisms at the first trophic level are primary producers like plants which obtain energy from non - living sources such as sunlight (through photosynthesis). They are eaten by higher - level organisms. Also, as energy is transferred through trophic levels with energy loss at each step, first - trophic level organisms together contain more energy than those at higher levels. They are at the base, not the top of ecological pyramids, and are not apex predators.

Answer:

They are eaten by organisms at higher trophic levels.
They obtain energy from nonliving sources.
Altogether, they contain more energy than organisms at higher trophic levels.