Cancer results when cells lose the ability to
A) divide rapidly.
B) control the cell cycle.
C) induce mutations.
D) spread.
Ans: B) control the cell cycle.
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Birds that catch their prey by plunge diving into the water from the air are:
a. skimmers. b. cormorants. c. terns. d. penguins. e. avocets.
Elephants are killed for their tusks and rhinos for their horns. This is an example of __________ for traditional
medicine and ornaments. Fill in the blank(s) with the appropriate word(s).
Which is NOT an element?
a. water b. oxygen c. carbon d. chlorine e. hydrogen
A pediatrician sees a patient exhibiting symptoms of gigantism and rapid growth. Which of the following endocrine glands is likely affected in this individual?
A. the thyroid gland B. the adrenal gland C. the parathyroid gland D. the anterior pituitary gland E. the posterior pituitary gland