The best animal models for xenotransplantation of organs into humans are the nonhuman primates, such as chimpanzees and baboons
a. True
b. False
Indicate whether the statement is true or false
False
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Matt is studying how the protein transferrin enters cells. He examines cells that have taken up transferrin, and finds clathrin-coated vesicles. What mechanism was used to take transferrin into the cell?
A. Phagocytosis B. Pinocytosis C. Exocytosis D. Receptor-mediator endocytosis
What kind of fruit is formed from the fusion of individually pollinated flowers?
a. aggregate b. simple c. multiple d. fleshy e. dry
The phase of the cell cycle that occupies most of an average cell's life is
A.) G1 B.) Mitosis C.) G2 D.) S
Arteries are distinguished from veins based on all of the following features except the
A) direction of blood flow relative to the heart. B) structure of their walls. C) amount of oxygen present in the blood. D) blood pressure pushing against the walls of the vessels.