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: Which can move?
Options:
- (A) Raft
- (B) light energy
- (C) vehicles
- (D) insects
- (E) protists
- (F) bicycle
- (G) animals
- (H) an object
(E)
Explanation for the Ans above: [[Most protists have motility. All animals are motile, moving about at some point in their life cycle. Most protists are able to move.]]

Ques and Ans: Sharks have as skeleton that contains
Options:
- (A) elastin
- (B) Epidermis
- (C) calcium
- (D) fur and fat
- (E) marrow
- (F) strength
- (G) all matter
- (H) collagen
(H)
Explanation for the Ans above:
[[Cartilage is a tough tissue that contains a protein called collagen. Sharks have a cartilage skeleton. Sharks have as skeleton that contains a protein called collagen.]]