Which muscle contraction is involuntary?
A. cardiac only
B. smooth only
C. skeletal only
D. cardiac and smooth
E. cardiac, smooth, and skeletal
Answer: D
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Two species of salamander have similar ranges, but one breeds from January to March, while the second one breeds from March to May. This is an example of
A. mechanical isolation. B. temporal isolation. C. habitat isolation. D. behavioral isolation. E. gametic isolation.
An organism that does not require oxygen, grows better in the absence of oxygen, but can survive in atmospheres containing some molecular oxygen is known as a/an:
A) aerotolerant anaerobe. B) capnophile. C) facultative anaerobe. D) microaerophile.
In order to reproduce, to what type of wetland must certain species of salamanders migrate so their aquatic eggs can develop free of predatory fish that are unable to survive the annual drying up of this wetland?
A) vernal pond B) intertidal zone C) marsh D) swamp
The mitotic cell cycle results in the production of ________
A) four cells, each with the same amount of genetic material and the same genetic information B) two cells, each with the same amount of genetic material but with different genetic information C) two cells, each with the same amount of genetic material and the same genetic information D) four cells, each with the same amount of genetic material but with different genetic information