The Scaphopoda
a. Lack a shell
b. Lack a mantle
c. Live in fresh water
d. Pursue prey in a manner similar to squid
e. Lack gills
Answer: e. Lack gills
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Indicate whether this statement is TRUE or FALSE.
The digestive system of molluscs is found in the:
a. head. b. foot. c. mantle. d. visceral mass. e. mantle cavity.
A color-blind man and a woman with normal vision
whose father was color blind have a son. Color blindness, in this case, is caused by an X-linked recessive gene. If only the male offspring are considered, the probability that their son is color blind is a. 0.25 (or 25%). b. 0.50 (or 50%). c. 0.75 (or 75%). d. 1.00 (or 100%). e. none of these.
Hydrolases are generally involved in ________ reactions
A) anabolic B) catabolic C) both anabolic and catabolic D) neither anabolic nor catabolic E) oxidation-reduction