1. What is the most stable result of the specific ESS simulation Dawkins describes?
(a) A 1:1 mixture of two kinds of behavior.
(b) A 3:2 mixture of two kinds of behavior.
(c) A 1:4 mixture of two kinds of behavior.
(d) A 7:5 mixture of two kinds of behavior.

2. What happens in inversion?
(a) A gene is inserted backwards on a strand of DNA.
(b) Chromosomes are inserted backwards in a cell nucleus.
(c) DNA is inserted backwards in a chromosome.
(d) A nucleotide is inserted backwards in DNA.

3. What apparently unselfish behavior of small birds does the author describe?
(a) Drawing the attention of a hawk to itself and away from the flock.
(b) Bringing excess food to others in the flock.
(c) Staying awake to warn the flock of approaching predators.
(d) Protecting another bird's eggs.

4. In sexual reproduction, what does the larger egg cell have that the smaller sperm cell does not?
(a) The ability to protect itself from other cells.
(b) A complete set of DNA.
(c) The ability to move around to more beneficial environments.
(d) More food reserves for the future embryo.

5. How is male and female responsibility for offspring different in fish?
(a) Males care for eggs, and then females take over when the offspring hatches.
(b) Males and females both leave their fertilized eggs without investing resources in them.
(c) Females may lay eggs and abandon them, while males fertilize the eggs and are left to care for them.
(d) Females care for the eggs, and when they hatch, they leave the live offspring to the males.