Ans: (B)
Question: What are a major food source for other organisms, including humans?
Options:
- (A) Earthworms
- (B) Soft-bodied invertebrates
- (C) Fully cooking the oysters
- (D) absorb light energy
- (E) remains of prehistoric life
- (F) members of their own species
- (G) Humans
- (H) Lawns
CoT: Mollusks are a major food source for other organisms, including humans. Mollusks are soft-bodied invertebrates. Soft-bodied invertebrates are a major food source for other organisms, including humans.




Ans: (B)
Question: Neurons are the structural and functional units of where what is critical?
Options:
- (A) organs
- (B) Glial cells
- (C) nerves
- (D) Structural units
- (E) voltage
- (F) Storage units
- (G) Critical care
- (H) A computer
CoT: Neurons are the structural and functional units of the nervous system. Glial cells perform critical functions in the nervous system. Neurons are the structural and functional units of where the glial cells perform critical functions.




Ans: (H)
Question: Some invertebrates may have which feature?
Options:
- (A) invertebrate
- (B) fat
- (C) gills
- (D) exception
- (E) three
- (F) mollusk
- (G) complex
- (H) shell
CoT: Most mollusks have shells. Mollusks are invertebrates and are no exception. Some invertebrates have shells.




Ans: (E)

Question: What can stay hidden in a hibernating state inside the body?
Options:
- (A) infections
- (B) blood cells
- (C) fungi
- (D) insects
- (E) viruses
- (F) honeybees
- (G) plasma
- (H) barnacles
CoT: Some viruses live in a dormant state inside the body. When ferns are dormant it is as if they are hibernating. Some viruses live in a hibernating state inside the body.