Darwin’s exposure to Lyell gave him insight on the ____
a. existing evidence from fossils
b. record of catastrophic changes that encouraged evolution
c. soundness of Lamarck's theories
d. enormous lengths of time required for geologic events
e. arguments for creationism
ANSWER: d
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What will be an ideal response?
Beta-lactamases
A. bind to penicillin-binding proteins. B. bind to peptides. C. prevent the linking of glycan chains in peptidoglycan. D. break the beta-lactam ring.
Grana and thylakoids are structural components found in ____
a. nucleoli b. mitochondria c. ribosomes d. chromoplasts e. chloroplasts
Which two endocrine glands exert the most control over blood calcium levels?
A) thyroid and ovaries B) adrenal cortex and thyroid C) anterior pituitary and adrenal cortex D) thyroid and parathyroid E) parathyroid and anterior pituitary