The picture shows the active transport of ions by the sodium-potassium pump. how is diffusion different from this process?

Explain why the plants cortex would serve as the best food source for animals

The vaccine in a flu shot contains weakened flu viruses. how does a flu shot work with the immune system? a. it destroys lymphocytes. b. it destroys macrophages. c. it activates macrophages. d. it activates lymphocytes.

Fungi are classified into how many groups? a. 1 group b. 2 groups c. 3 groups d. 4 groups