Ques and Ans: For animals, displays of color can be viewed as:
Options:
- (A) spectrum
- (B) prudishness
- (C) rainbow
- (D) courtship
- (E) positive
- (F) harm them
- (G) produce light
- (H) Movement
(D)
Explanation for the Ans above: [[Courtship is behavior that is intended to attract a mate. Almost all animals display colors to attract a mate or to scare off a predator. Courtship can be manifested by displays of color.]]

Ques and Ans: Humans have collected and grown what for food for thousands of years?
Options:
- (A) plants
- (B) fungi
- (C) ferns
- (D) cheese
- (E) fungus
- (F) salmon
- (G) hamburgers
- (H) primates
(B)
Explanation for the Ans above: [[Humans have collected and grown mushrooms for food for thousands of years. Mushrooms are an example of fungi. Humans have collected and grown fungi for food for thousands of years.]]

Ques and Ans: Bacteria causes what to be harmed?
Options:
- (A) plants
- (B) electronics
- (C) fossils
- (D) humans
- (E) animals
- (F) viruses
- (G) food
- (H) the skin
(A)
Explanation for the Ans above:
[[Plants respond to daily and seasonal cycles and to disease. Plant diseases cause by bacteria. Plants respond to seasonal and daily cycles and to bacteria.]]