Answer:
Option 4 depends on the ability to turn towards light.
Explanation:
In both cases, viral DNA is integrated into the host DNA for a period of time
Unwanted pregnancy or std ( sexually transmitted disease <span />
Answer:
found lining many areas that contact the external environment
plays a role in protection
Explanation:
Explanation: Epithelial tissue is composed of cells laid together in sheets with the cells tightly connected to one another. Epithelial layers are avascular, but innervated. Epithelial cells have two surfaces that differ in both structure and function.