Which of these individuals is most likely to be successful in an evolutionary sense?
A)a reproductively sterile individual who never falls ill
B)an organism that dies after 5 days of life but leaves 10 offspring, all of whom survive to reproduce
C)a male who mates with 20 females and fathers 1 offspring
D)an organism that lives 100 years and leaves 2 offspring, both of whom survive to reproduce
E)a female who mates with 20 males and produces 1 offspring

Question

Quizplus · Accepted Answer

Evolutionary success is measured by an individual's ability to pass on its genes to future generations. The organism in choice B leaves behind 10 offspring, all of whom survive to reproduce, ensuring that its genes are carried on to the next generation. Reproductive sterility (choice A) and low mating success (choices C and E) decrease the chances of passing on one's genes. Living a long life (choice D) may provide more opportunities to reproduce, but if an organism only leaves behind two offspring, it is not as successful in passing on its genes as the organism in choice B.

Which of These Individuals Is Most Likely to Be Successful