Certain cells need to absorb a lot of materials. what unique features do you notice about the shape of these cells? how might this improve their ability to absorb

Legumes, a type of plant, require rhizobia, a type of soil bacteria, to survive since these organisms fix nitrogen during photosynthesis. rhizobia use the legumes for food. what would most likely happen to the legume population if rhizobia suddenly became extinct?

What is the problem in this article? what solution does the article propose?

What are some natural processes that represent physical and chemical changes?