Ques:[What occurs in animals as they respond to changes in their habitat?
Options:
- (A) starvation
- (B) evolution
- (C) arousal
- (D) relocation
- (E) resistance
- (F) dependency
- (G) Leptospirosis
- (H) Movement]
Ans:[Evolution occurs in response to a change in the environment. Animals react instinctively to changes in their environment. Evolution occurs in animals as they respond to change in their habitat.
(B)]

Ques:[Producers that are adapted to very dry environments are called what?
Options:
- (A) xerophytes
- (B) ragweed
- (C) mammals
- (D) dry plants
- (E) animals
- (F) cactus
- (G) alpacas
- (H) bacteria]
Ans:[Plants that are adapted to very dry environments are called xerophytes. If the plant is green, it is a producer. Producers that are adapted to very dry environments are called xerophytes.
(A)]

Ques:[What are flower cell walls made of?
Options:
- (A) cellular
- (B) lmestone
- (C) cellulitis
- (D) strong
- (E) cellulose
- (F) cellulite
- (G) heat energy
- (H) acetic acid]
Ans:[Plants are multicellular eukaryotes with cell walls made of cellulose. Flowers are plant organs of reproduction. Flowers are multicellular eukaryotes with cell walls made cellulose.
(E)]

Ques:[How long can antibodies protect the body?
Options:
- (A) As long as antibodies survive
- (B) Slowing the transfer of heat
- (C) For a set time
- (D) by keeping them warm
- (E) it protects them
- (F) Into elderly years
- (G) As long as the human survives
- (H) A compound that donates proton]
Ans:
[Passive immunity lasts only as long as the antibodies survive in body fluids. Antibodies are administered to the patient in a process called passive immunization. Antibodies are administered to patients for protection but it only helps as long as the antibodies survive in body fluids.
(A)]