Lymphocytes that are clones of activated B cells or T cells that enhance resistance to future infection are called:

a. memory cells.

b. clones cells.

c. enhanced cells.

d. recall cells.

3. How do floods affect the environment? Select all that apply. a. Floods destroy buildings. b. Floods create areas of more fertile soil. c. Floods speed up the weathering of rock. d. Floods make riverbeds steeper.

Which biome has the least rainfall? Why might it be?

The wrist is composed of eight bones called

Which of the following indicates maturation of the prefrontal cortex by age 6? Select one: a. emotions become more nuanced and responsive b. sleep becomes more irregular c. temper tantrums increase d.

Red flowers (dominant) crossed with white flowers (recessive) can yield pink flowers. Pink is the heterozygous condition in a trait that shows incomplete dominance.

In order to prevent the possibility of venous stasis, a nurse is teaching a surgical client how to perform leg exercises.

Which of the following is not a correct equation for centripetal force? A. Fc=mac B. F=m v2/t C. F=m v/r

Which of the following is the path of a nerve impulse through a neuron?

9 Which is the basic functional unit of life? organism organ tissue cell

What is a good lab introduction? (Title, purpose, question, hypothesis, variables)