What is an arthopod with two wings?
Options:
- (A) rare
- (B) fly
- (C) two
- (D) host
- (E) Aves
- (F) male
- (G) bird
- (H) bats
--
Let's think first: Most arthropods are insects. Flies are insects with two wings. Flies are arthropods with two wings.... So the answer is [(B)]

Some agents that infect cells live in what state inside the body?
Options:
- (A) solid
- (B) conscious
- (C) expelled
- (D) bacteria
- (E) infected
- (F) dormant
- (G) cellular
- (H) protected
--
Let's think first: Some viruses live in a dormant state inside the body. Viruses Viruses are agents that infect cells, yet lack many of the characteristics of life. Some agents that infect cells live in a dormant state inside the body.... So the answer is [(F)]

Where do corals form large colonies?
Options:
- (A) Mars
- (B) new World
- (C) Sediment
- (D) shoreline
- (E) environment
- (F) Absorb light
- (G) loose soil
- (H) polyps
--
Let's think first: Corals form large colonies in shallow tropical water. Water is shallow at the shore with gradual deepening. Corals form large colonies at the shoreline.... So the answer is [(D)]

Frogs have a _-chambered heart.
Options:
- (A) alveoli
- (B) organ
- (C) ovaries
- (D) oxygen
- (E) edible
- (F) three
- (G) nektar
- (H) CO 2
--
Let's think first: Amphibians have a relatively complex circulatory system with a three-chambered heart. All frogs are amphibians. Frogs have a three-chambered heart.... So the answer is [(F)]

What tells a cell what to do?
Options:
- (A) electricity
- (B) proteins
- (C) A computer
- (D) Energy
- (E) nerves
- (F) sweating
- (G) heat energy
- (H) Energy.
--
Let's think first: Molecules of DNA are encoded with instructions that tell cells what to do. DNA encodes the information for protein sequences. Proteins tell cells what to do.... So the answer is [(B)]

What gets converted into the type of energy that animal cells need?
Options:
- (A) photosynthesis
- (B) solar energy
- (C) sugar
- (D) UV
- (E) food
- (F) water
- (G) Energy
- (H) Light
--
Let's think first: Glucose is used for energy by the cells of most organisms. Food is converted into glucose. Food is converted into the type of energy that most cells use.... So the answer is [(E)]