The idea of "punctuated equilibrium" suggests that species show little to no evolutionary change throughout their history. When evolution does occur, according to this idea, it happens sporadically and relatively quickly compared to the species' full duration on earth. This idea of evolution in spurts challenges which of the components of Darwin's theory of evolution?
a. steady change
b. gradualism
c. multiplication of species
d. Both a) and b) are correct.
e. None of the above is correct.
Ans: d. Both a) and b) are correct.
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Which part of a neuron stores neurotransmitters?
a. dendrites b. cell body c. axon trigger zone d. axon terminal e. axon conducting zone
In cells that cannot transfer NADH across the mitochondrial membrane, the ATP counts are reduced by ____.
Fill in the blank(s) with the appropriate word(s).
What are the two main branches of prokaryotic evolution?
A. autotrophs and heterotrophs B. viruses and bacteria C. bacteria and archaea D. fungi and protists