If an investigator removes the mesoderm from an
embryo, the development of which of the following
systems is least likely to be affected?
a. circulatory system
b. muscle system
c. reproductive system
d. integumentary system
e. excretory system
Answer: d
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In the absence of predators, the prey population
a. increases rapidly b. decreases slowly c. decreases rapidly d. increases rapidly
A chromosome’s gene sequence that was ABCDEFG
before damage and ABCFG afterward is an example of a. inversion. b. deletion. c. duplication. d. translocation. e. aneuploidy.
The reptiles, which include lizards, snakes, alligators, crocodiles, turtles, and birds, evolved from the _____.
A) reptiles. B) amphibians. C) vertebrates. D) both A and C E) both B and C
Under ideal conditions, prokaryotes are capable of reproducing at a(n) ________ rate
A) negative B) exponential C) infinite D) variable