What is the function of surfactant in the mammalian respiratory system?
A. reduction of surface tension in the fluid
covering the alveoli
B. capture and removal of inhaled foreign
particles
C. maintaining a moist surface
D. transport of oxygen
E. It functions as an antibiotic.
A
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Why was the advent of the amniotic egg so important in the evolution of terrestrial vertebrates?
A. It made internal fertilization more likely, so it increased individual species' fitness. B. It completely removed dependence on water for reproduction. C. It reinforced pre-zygotic isolating mechanisms. D. It increased the number of offspring an individual female could have.
"Mad cow" disease, also called bovine spongiform encephalopathy, is caused by a ________
a. virus b. fungus c. bacteria d. prion
A metaphase plate forms in both plant and animal cells
and is when the chromosomes __________. Fill in the blank(s) with the appropriate word(s).
Explain the process of feedback inhibition. What role do allosteric regulators play in this process? What will be an ideal response?