Which process results in quick bursts of change or speciation followed by long periods of stasis?
A. phyletic gradualism
B. dynamic stasis
C. punctuated equilibrium
D. rocket evolution
Ans: A. phyletic gradualism
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Which of the following statements is true regarding anammox?
A. It can be carried out by both eukaryotes and archaeons. B. It generates less energy compared to respiration. C. It is performed in oxygen-rich environments. D. It is identical to nitrogen fixation. E. All of these answer options are correct.
All three types of bacterial recombination share one characteristic. What is it?
What will be an ideal response?
When you step on a nail, pain receptors send action potentials via ________ neurons to the spinal cord, where they synapse with __________ neurons which in turn synapse with _______ neurons which send action potentials to _________.
Fill in the blank(s) with the appropriate word(s).
Dentinogenesis imperfecta is a rare, autosomal, dominantly inherited disease of the teeth that occurs in about one in 8000 people. The teeth are somewhat brown in color, and the crowns wear down rapidly. Assume that a male with dentinogenesis imperfecta
and no family history of the disease marries a woman with normal teeth. What is the probability that their first child will have dentinogenesis imperfecta? A) 1/4 B) 1/8 C) 1/2 D) 100% E) 3/4