If you eliminated all sources of calcium (dairy
products, some vegetables) from your diet, the level
of which of the following would rise in an attempt to
supply calcium stored in your body to the tissues that
need it?
a. aldosterone
b. calcitonin
c. mineralocorticoids
d. parathyroid hormone
e. all of these
Answer: d
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Which of the following helps preserve foods by controlling microbial access to water?
A. Drying B. Addition of sugar C. Addition of salt D. All of the choices are correct.
All of the following animals have placentas EXCEPT
a. kangaroos. b. opposums. c. echidnas. d. koalas. e. wombats.
In the accompanying diagram, ____ is responsible for secreting digestive enzymes into the small intestine and
hormones into the blood.
a. D b. E c. F d. G e. A
What are the predicted phenotypes of the children from a union of a woman who is heterozygous for
hemophilia and a man who is normal? (Use the Punnett square to verify your answer.) a. 100% normal b. 75% hemophilia: 25 % normal c. 50% hemophilia: 50% normal d. 25 % hemophilia: 75% normal e. 100% hemophilia