Which one of the following is characteristic of T lymphocytes but NOT B lymphocytes?
A) direct attack of antigen-bearing cells
B) production of immunoglobulins
C) maturation in the red bone marrow
D) production of plasma cells
E) antibody-mediated immunity
A
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The thin horizontal arrows in the figure above show that the _____
A) warmer arterial blood can bypass the legs as needed, when the legs are too cold to function well B) warmer venous blood transfers heat to the cooler arterial blood C) warmer arterial blood transfers heat to the cooler venous blood D) arterial blood is always cooler in the abdomen, compared to the temperature of the venous blood in the feet of the goose E) goose's legs get progressively warmer as the blood moves away from the abdomen towards the feet
The process by which chromosomes fail to
separate during meiosis is called
a. aneuploidy. b. trisomy. c. monosomy. d. nondisjunction. e. polyploidy
If an individual was interested in eating a healthy breakfast that would provide them with energy for the entire day the breakfast should include which of the following foods?
A. Whole grain cereal with 4 ounces of milk. B. Scrambled eggs and refried beans. C. Two pieces of whole grain toast made with refined wheat flour. D. Two slices of bacon and one scrambled egg. E. All of the choices would provide energy for the entire day.
Acetyl-CoA is produced when ____________________ is broken down.
Fill in the blank(s) with the appropriate word(s).