Why are green plants known as producer?

pls tell answer in short :)​

Plsss > .< compare and contrast the characteristics of flatworms rounds worms and earthworms

What function does the limb sever in each animal? how are the limb bones of the four animals similar? based on these similarities what can be inferred about the evolution of the four animals.

Which of the following is a feature of all cells? o a. all cells have a nucleus. o b. all cells have dna for at least part of their life cycle. het . o c. all cells are spheres. o d. all cells have a rigid cell wall.