They have evolved into the best length for their environment.
I think the correct answer from the choices listed above is option A. Autotrophic protists are different from the heterotrophic protists in a sense that t<span>he autotrophic protists can photosynthesize, while the heterotrophic protists cannot. Hope this answers the question.</span>
The answer is A) food web. B is not actually a thing, and C and D are very different vocab words.
Answer:
c. the cells grow in size and content producing mainly proteins