(question). _ is how organisms grow and repair themselves.
Options:
- (A) complex
- (B) recycling
- (C) properties
- (D) fusion
- (E) fission
- (F) bacteria
- (G) Mitosis
- (H) potatoes
(answer). Cell division is how organisms grow and repair themselves. Mitosis is cell division. Mitosis is how organisms grown and repair themselves.
The answer is (G)

(question). What is not a cell?
Options:
- (A) all matter
- (B) layers of fat
- (C) illness
- (D) bacteria
- (E) influenza
- (F) Leptospirosis
- (G) an object
- (H) hydrocarbons
(answer). Viruses are not cells. Influenza viruses mutate. Influenza is not a cell.
The answer is (E)

(question). What are a source of food for many fish species?
Options:
- (A) layers of fat
- (B) bird species
- (C) human species
- (D) keystone species
- (E) Organic compounds
- (F) barnacles
- (G) gastropod shells
- (H) species of deer
(answer). Sponges are a source of food for many species of fish. Sponges are also keystone species. Keystone species are a source of food for many fish species.
The answer is (D)

(question). What do viruses contain the most of?
Options:
- (A) Chemical energy
- (B) layers of fat
- (C) ribonucleic acid
- (D) cytoplasm
- (E) germs
- (F) harmful substances
- (G) deadly and devastating
- (H) deoxyribonucleic acid
(answer).
Viruses contain DNA but not much else. DNA DNA is deoxyribonucleic acid. Viruses contain deoxyribonucleic acid, but not much else.
The answer is (H)