The phenomenon through which populations of organisms change over several generations is termed
A. homeostasis.
B. growth and development.
C. reproduction.
D. biological evolution.
E. organization.
D. biological evolution.
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Which term refers to a type of hypersensitivity to self-antigens?
a. autoimmunity b. immunodeficiency c. adaptive immunity d. innate immunity
__________ are proteins, Y-shaped antigen receptors made only by __________ cells. Fill in the blank(s) with the appropriate word(s)
Although glycolysis requires an input of ATP, this pathway results in a net gain of two ATP; therefore it is a(n) ________ pathway
A) exergonic B) endergonic C) oxidative D) reductive E) neither exergonic nor endergonic
Why might the xiphoid process be missing from the sternum in a set of human remains?
a. The remains are from an adult younger than 40 years of age, and the hyaline cartilage does not preserve as well as bone. b. Because the xiphoid process may be broken off if the individual had been given CPR c. Because the xiphoid process shrinks with age d. Because the xiphoid process is small and does not articulate with any other bones