[Q] Amphibians have what sort of sensing system?
Options:
- (A) strong
- (B) retina
- (C) four limbs
- (D) chemical
- (E) mechanical
- (F) the eyes
- (G) nerves
- (H) heat or cold
[A] Here's my solution: Amphibians have sense organs to smell and taste chemicals. Smell and taste belong to our chemical sensing system. Amphibians have a chemical sensing system. The answer is (D).

[Q] Microtubules help prokaryotes _.
Options:
- (A) live
- (B) dense
- (C) store
- (D) grow
- (E) work
- (F) move
- (G) growth
- (H) ferns
[A] Here's my solution: Flagella help prokaryotes move. Cilia and flagella are composed of microtubules. Microtubules help prokaryotes move. The answer is (F).

[Q] What can hiv infect and destroy part of?
Options:
- (A) water
- (B) parasitic
- (C) epidermis and dermis
- (D) the immune response
- (E) Veins and arteries.
- (F) Most plants
- (G) the body's largest organ
- (H) Trojan worm
[A] Here's my solution: HIV infects and destroys helper T cells. Helper T Cells Helper T cells are the brains behind immune response. HIV infects and destroys part of the immune response. The answer is (D).

[Q] Fungi are the only organisms that can decompose dead what?
Options:
- (A) fossils
- (B) legumes
- (C) trees
- (D) matter
- (E) amoeba
- (F) coal
- (G) elms
- (H) bamboo
[A]
Here's my solution: Fungi are the only organisms that can decompose wood. Wood comes from trees. Fungi are the only organisms that can decompose dead trees. The answer is (C).