SAT Subject Biology Practice Question 88: Answer and Explanation
18. Which of the following describes a behavior of organisms of the same species?
A. Periodical cicadas that emerge the same year
B. Fish that become fertile during different seasons
C. Ungulates that mate frequently and yield sterile offspring
D. Rodents that mate frequently and yield no viable offspring
E. Tropical birds that court their mates with differing dances or songs
Correct Answer: A
Organisms that reach sexual maturity at the same time are more likely to be the same species. Periodical cicada nymphs emerge from the ground when they are ready to enter the adult stage.