If an older patient came in complaining of joint pain, and a scan showed the bones in the patient’s hands rubbing one another, you would diagnose

In the human male and female reproductive systems, each system contains paired primary sex organs called _____, which contain _____ that give rise to gametes.

The diploid first cell of a new organism is a(n)

Although the lymphatic system has many similarities to the circulatory system, what can the lymphatic system accomplish that the circulatory system cannot?

A whole blood cell transfusion would be used to treat which of the following?

Cushing’s syndrome occurs when the body’s tissues are exposed to high levels of cortisol for too long. Many people develop Cushing’s syndrome because they take steroid glucocorticoids such as prednisone for asthma, rheumatoid arthritis, lupus, and other inflammatory diseases. Other people develop Cushing’s syndrome because their bodies produce too much cortisol.Cortisol is produced by the adrenal glands located near the kidney, yet pituitary tumors cause 70% of Cushing’s syndrome cases. The best explanation for this observation is that the pituitary tumor releases

In herbivores, cellulose is primarily broken down by

If you were a doctor working with a patient whose digestion had slowed markedly, you might measure the patient’s production of

Animals that consume decaying organic matter as their main source of food are

The cells in the ovary that give rise to the mature egg cells are the