Cladograms show the sequence of evolution of characters in a clade.
a. true
b. false
Ans: a. true
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During chemical evolution, which of the following occurred in the molecules involved?
A) Entropy decreased while potential energy increased. B) Entropy increased while potential energy increased. C) Entropy stayed constant while potential energy increased.
Polar bodies
a. are dumping places for excess genetic material. b. have no known biological function. c. are produced by meiosis. d. will serve as the gametes if something happens to the egg. e. all of these are true EXCEPT "will serve as the gametes if something happens to the egg."
The _____ is the layer of fat that is covered with pubic hair and is positioned on top of the pubic bone.
A. os pubis B. mons pubis C. labia minora D. labia majora
One of the unique characteristics of water is its ability to maintain a constant temperature within large aquatic systems. Why is this important to an aquatic environment?
A) Aquatic organisms cannot survive in warm water environments. B) Most aquatic organisms cannot survive in cold water environments. C) Aquatic organisms can only survive within a very small range of water temperatures. D) Most aquatic organisms cannot survive a rapid increase or decrease in water temperature.