Human immune cells, called macrophages, engulfed bacteria and other foreign material. is the action of a macrophage an example of endocytosis.
-define endocytosis
-compare endocytosis and active transport

I’m doing some practice exam questions for biology, and i’m not sure how to do these 3 parts to the question.

Jasmine, at 33 months of age, is able to engage in some self-care behaviors but still has trouble with tasks such as putting on socks. a few months later, she accomplishes this same task relatively easily. the change in abilities is most likely due to

What element is able to combine with itself and hydrogen to form large molecules ?