Ans: (H)
Question: The trcipes femoris is used to move what?
Options:
- (A) heat
- (B) Mass
- (C) Weight
- (D) feet
- (E) matter
- (F) people
- (G) embryos
- (H) bones
CoT: Muscles can only contract. When contracted the triceps femoris pulls the thigh forward and extends the shank. Muscles like the triceps femoris are used to move bones.

Ans: (G)
Question: What uses food for energy?
Options:
- (A) Most plants
- (B) no organisms
- (C) agriculture
- (D) the Moon
- (E) animals
- (F) athletes
- (G) most organisms
- (H) the Sun
CoT: Glucose is used for energy by the cells of most organisms. Food is converted into glucose. Food is used for energy by most organisms.

Ans: (B)
Question: What are the key cells in an allergy attack?
Options:
- (A) layers of fat
- (B) Lymphocytes.
- (C) fur and fat
- (D) bone cells
- (E) muscle cells
- (F) the skin
- (G) Red blood cells
- (H) animals
CoT: Lymphocytes are the key cells involved in the immune response. An allergy attack is an immunal response. Lymphocytes are the key cells involved in an allergy attack.