Examinations of miscarried human embryos show that about 70% of such embryos are ____
a. polyploids
b. haploids
c. aneuploids
d. euploids
e. diploids
C
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Peter Mitchell demonstrated ATP production by aerobic bacteria by placing the bacteria in:
a. an acidic environment. b. a basic environment. c. an aqueous environment. d. a buffered environment. e. a nonpolar environment
In humans, the HIV virus primarily attacks which of the following types of cells?
A. Epidermal cells B. Red blood cells C. White blood cells D. Glial cells E. Neurans
The infoldings of the inner mitochondrial membrane are called
a. cisternae. b. cristae. c. laminae. d. lacunae.
What is the Allee effect?
A. when fitness increases independently of population size B. when fitness and growth rates increase with increasing population size C. when growth rates increase independently of population size D. when fitness and growth rates increase with decreasing population size