[Q] How do some insects communicate?
Options:
- (A) sound
- (B) sensory neurons
- (C) Decibels
- (D) electronic waves
- (E) progesterone
- (F) Vibrates
- (G) pheromones
- (H) radio waves
[A] Here's my solution: Ants communicate with chemicals called pheromones. Ants are of extreme importance in the insect world. Some insects communicate with chemicals called pheromones. The answer is (G).

[Q] What happens when people flow into or out of a population?
Options:
- (A) genetic morphing
- (B) death
- (C) gene flow
- (D) movement
- (E) generic flow
- (F) interact
- (G) competition
- (H) gene expression
[A] Here's my solution: Gene flow occurs when individuals move into or out of a population. People are individuals, and each person has different needs. Gene flow occurs when people move into or out of a population. The answer is (C).

[Q] Evolution over geologic time at the genus level and above is:
Options:
- (A) microcosm
- (B) genetic
- (C) Plants growth
- (D) macroevolution
- (E) natural selection
- (F) gastropod shells
- (G) peachleaf willow
- (H) Plant reproduction
[A] Here's my solution: Macroevolution is evolution over geologic time above the level of the species. Besides the above-named species, various other species of the genus have been used medicinally. Macroevolution is evolution over geologic time at the genus level and above. The answer is (D).

[Q] Prokaryotes are single celled living things in the animal kingdom that don't have a what?
Options:
- (A) epidermal
- (B) genus
- (C) complex
- (D) extinction
- (E) food
- (F) nucleus
- (G) properties
- (H) alleles
[A]
Here's my solution: Prokaryotes are single-celled organisms that lack a nucleus. An organism is a living thing. Prokaryotes are single celled living things that lack a nucleus. The answer is (F).