What are possible effects of long-term environmental changes? Check all that apply.

1. adaptation

2. extinction

3. migration

4. speciation

5. starvation

Bacteria cells have no

Benign tumor of the adrenal medulla that causes the gland to produce excess epinephrine is called

If a heterozygous male with the genotype Ww is mated with a homozygous recessive female of genotype we what chance is it that their offspring would be heterozygous? 1.) 25% 2.) 50% 3.) 100%

Which feature of large biological molecules explains their great diversity? which feature of large biological molecules explains their great diversity?

Which structure on the sperm propels it toward the egg? scrotum flagellum semen glands

Using your knowledge of the normal process of gametogenesis and fertilization, formulate a hypothesis as to how a chimeric individual could form.

How are diffusion and osmosis different? A. Osmosis is the movement of proteins. Diffusion is the movement of water. B. Osmosis is the movement of water. Diffusion is the movement of chemicals and molecules. C.

Hich term describes the maintenance of a steady internal state in the body?

Natural Killer cells react in predictable ways. Put the following steps in order to describe the actions of an activated NK cell. A. Recognition and adhesion B. Section of perforins C. Lysis of the abnormal cell D. Realignment of Golgi apparatus

In the Hershey-Chase experiment, the material that entered cells upon infection by T2 virus was labeled with which radioactive isotope?