8. How does the Hoover Dam provide power to California, Nevada and Arizona?

The tubes transporting minerals and water upward are called ?

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.

What is the process of a new plant growing from its seed into a seedling? primary growth fertilization pollination germination