Which of the following statements is/are false?
P. genetic diversity helps prevent a species from becoming extinct
Q. the phenomenon in which animals with favorable adaptation reproduce more rapidly is called differential reproduction
R. geographic isolation is a common mechanism contributing to speciation
S. biologists estimate that 99% of all the species that have ever existed are now extinct
-
P, R
-
P, S
-
Q, R
-
none of these
D
Correct answer
Explanation
All four statements are factually correct in evolutionary biology. Genetic diversity does provide extinction resistance by ensuring some individuals may survive environmental changes. Differential reproduction (natural selection) is the mechanism by which favorable adaptations spread. Geographic isolation is indeed a key speciation mechanism. Paleontologists do estimate that over 99% of all species that ever existed are now extinct. Since all statements are true, none are false.