Which would be the first thing in the body to attack bacteria?

a. lysozymes
b. macrophages
c. t cells
d. memory cells

Acell in the human nervous system whose primary function is to form myelin and the blood-brain barrier, respond to injury, remove debris, and enhance learning and memory is called a(n) cell.

All organisms contribute some water to the water cycle by conducting

What is the period of cell life when it is conducting