Which of the following phrases is used to describe J. B. Lamarck's hypothesis of evolutionary change?
a. inheritance of ancestral identity
b. inheritance of acquired characteristics
c. natural selection
d. survival of the fittest
e. intelligent design
B
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A serum containing antigen-specific antibodies is called an
A) antiserum. B) antitoxin. C) antiantigen. D) anticoagulase.
Speciation occurs ____.
A. after populations become reproductively isolated B. when mutations generate observable differences C. when transitional forms develop between different populations D. when natural selection pressures reach their maximum E. randomly as mutations build up in a population
Which of the following is not true of viroids?
A. Viroids are small circular ssRNA molecules. B. Extracellular viroids have a lipid bilayer envelope. C. Viroid RNA does not serve as mRNA nor does it direct the synthesis of mRNA. D. Viroids have no protein capsids.
Alarm calling seems to be an example of ________, that is, it favors relatives.
A. aggression B. demography C. sociology D. kin selection