The Red Queen hypothesis proposes the following relationship between taxon age and extinction:
A. Lineages become more resistant to extinction the longer they have been present.
B. Rates of extinction vary substantially between different groups of organisms.
C. Immediately after speciation, risk of extinction is very high, but it eventually levels out.
D. Rate of extinction of taxa is fairly constant over time.
E. Rates of extinction vary substantially between different groups of organisms, and lineages become more resistant to extinction the longer they have been present.
Answer: D. Rate of extinction of taxa is fairly constant over time.
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A) Adenine B) Deoxyribose C) Ribose D) Other phosphate molecules