Ribbon worms use their ____ for capturing prey
a. epitoke
b. proboscis
c. pharynx
d. lophophore
e. choanocytes
B
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Which of the following is NOT true regarding
guppies of the species Poecilia reticulata? a. Males are generally smaller than the females. b. Males are more brightly colored than the females. c. Males continue growing after reaching sexual maturity. d. The male’s colors serve as visual signals for mating. e. They have complex mating rituals.
Cystic fibrosis is caused by a gene encoding a protein involved in ________
A) metabolism of adenosine triphosphate B) chloride transport C) oxygen transport in blood cells D) regulating cell cycle control E) None of these choices
If the corolla of an angiosperm is reduced, the plant is likely pollinated by
a. hummingbirds b. butterflies c. the wind d. bats e. none of these
Bioreactors are widely used for industrial fermentation. Which of the following conditions must be closely monitored for optimal fermentation?
A) temperature B) oxygen levels C) pH D) both temperature and pH E) temperature, pH, and oxygen levels