Many tropical ferns live on other plants without withdrawing nutrients from them. These ferns are said to be ____
a. epiphytes
b. bryophytes
c. parasites
d. pathogens
e. saprophytes
ANSWER: a
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Microbial strains that can grow on minimal medium are called ________.
A. minitrophs B. prototrophs C. auxotrophs D. autotrophs
You are examining a bacterial enzyme associated with glycolysis. You would expect expression of the enzyme to be
A) amplified when glucose is depleted. B) induced by glucose. C) repressed by glucose. D) induced when ATP concentrations in the cell are high. E) controlled by a riboswitch.
Which statement about glands and hormones is true?
A) The anterior pituitary produces multiple hormones that affect activity of other endocrine glands and cells of the body. B) The posterior pituitary produces melatonin, which helps regulate biological rhythms. C) The pineal gland is the master control center of the endocrine system. D) The hypothalamus is an endocrine gland responsible for producing the hormone calcitonin.
Euglenids were once classified as (algae/fungi/prokaryotes).
Fill in the blank(s) with the appropriate word(s).