Q: Living beings in marine biomes must be adapted to what in the water?
Options:
- (A) CO 2
- (B) stress
- (C) liquid
- (D) salt
- (E) heat
- (F) an ion
- (G) energy
- (H) motion
A: So, my chain of thought: Organisms that live in marine biomes must be adapted to the salt in the water. Organisms or living beings are literally things that are alive. Living beings that live in marine biomes must be adapted to the salt in the water. The answer is (D).

Q: What does the base of the food chain provide food for?
Options:
- (A) It helps them survive
- (B) sediments
- (C) Most plants
- (D) other organisms
- (E) our planet
- (F) energy systems
- (G) fruits
- (H) Animal survival
A: So, my chain of thought: Producers are organisms that produce food for themselves and other organisms. Producers are the base of the food chain. The base of the food chain help provide food for other organisms. The answer is (D).

Q: Plasma cells are activated b cells that secrete what?
Options:
- (A) Leptospirosis
- (B) Activated charcoal
- (C) Cellular phone services
- (D) Sweat
- (E) major threat to health
- (F) Warriors of the body.
- (G) Something that causes allergies
- (H) Chemical energy
A:
So, my chain of thought: Plasma cells are activated B cells that secrete antibodies. Antibodies act as warriors. Plasma cells are activated B cells that secrete warriors. The answer is (F).