Ans: (F)
Question: What has good eyesight?
Options:
- (A) humans
- (B) fur seals
- (C) athletes
- (D) bears
- (E) goats
- (F) geckos
- (G) elephants
- (H) rabbit
CoT: Most reptiles have good eyesight and a keen sense of smell. Geckos are, in fact, reptiles. Geckos have good eyesight.

Ans: (G)
Question: How do dogs conserve body heat?
Options:
- (A) their blood cells
- (B) fur and fat
- (C) their nails
- (D) layers of fat
- (E) Exfoliation
- (F) sweating
- (G) their fur
- (H) their hair
CoT: Mammals conserve body heat with their hair or fur. Dogs, of course, are mammals. Dogs conserve body heat with their fur.

Ans: (B)
Question: One tumor suppressor protein which often results in cancer when it stops functioning is:
Options:
- (A) gene
- (B) p53
- (C) tumors
- (D) HIV
- (E) enzyme
- (F) tRNA
- (G) DNA
- (H) TRH
CoT: Cancer is a disease that occurs when the cell cycle is no longer regulated. Another critical protein in regulating the cell cycle is the tumor suppressor protein p53 . Cancer is a disease that often results when tumor suppresor proteins, like p53, stop functioning.

Ans: (G)
Question: Caffeine can cause
Options:
- (A) congestion
- (B) anemia
- (C) constipation
- (D) sweating
- (E) hives
- (F) energy usage
- (G) dehydration
- (H) heat energy
CoT: Caffeine is a central nervous system stimulant. Stimulants can cause overheating and dehydration. Caffeine can cause dehydration.