Ques:[Organisms that live in marine biomes must be adapted to what?
Options:
- (A) Deposition
- (B) fish
- (C) waves
- (D) darkness
- (E) salinity
- (F) heat or cold
- (G) evaporation
- (H) Deposition.]
Ans:[Organisms that live in marine biomes must be adapted to the salt in the water. Salinity is the measure of salts in the water. Organisms that live in marine biomes must be adapted to salinity.
(E)]

Ques:[What does not normally lay eggs?
Options:
- (A) swea
- (B) insects
- (C) Mammal
- (D) chickens
- (E) cows
- (F) animals
- (G) parasites
- (H) ducks]
Ans:[Platypus females lay their eggs in a burrow. Although the platypus is a mammal, it is bizarre and lays eggs . Mammals do not usually lay eggs.
(C)]

Ques:[What die quickly if a stroke occurs?
Options:
- (A) a fish
- (B) animals
- (C) brain cells
- (D) organs
- (E) critical organs
- (F) protons
- (G) neutrons
- (H) bones]
Ans:[Brain cells die quickly if their oxygen supply is cut off. If the oxygen supply to the brain is cut off, a stroke can occur. Brain cells die quickly if a stroke occurs.
(C)]

Ques:[What provides food and shelter to many ocean organisms?
Options:
- (A) It helps them survive
- (B) Something formed from skeleton
- (C) sedimentary rocks
- (D) important habitats
- (E) Something with a head, thorax, and abdomen
- (F) it protects them
- (G) gastropod shells
- (H) in their habitats]
Ans:
[Coral reefs provide food and shelter to many ocean organisms. Coral reefs are formed from coral skeletons. Something formed from skeletons provide food and shelter to many ocean organisms.
(B)]