What is an example of an entity that can live on in a completely inactive state?
Options:
- (A) an object
- (B) sloths
- (C) hibernating bears
- (D) Conifers
- (E) chickenpox
- (F) barnacles
- (G) a fish
- (H) mammals
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Let's think first: Some viruses live in a dormant state inside the body. After an episode of chickenpox, the virus becomes dormant in the body. Chicken pox can live in an inactive state.... So the answer is [(E)]

Antigens are molecules that prompt the what of antibodies?
Options:
- (A) termination
- (B) failure
- (C) humans
- (D) decrease
- (E) production
- (F) anemia
- (G) rapid expansion
- (H) kinetic
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Let's think first: Antigens are molecules that the immune system recognizes as foreign to the body. Antigens prompt the body to produce antibodies. Antigens are molecules that prompt the production of antibodies.... So the answer is [(E)]

What has radial symmetry?
Options:
- (A) peachleaf willow
- (B) sea urchins
- (C) humans
- (D) gastropod shells
- (E) A Greek letter
- (F) asymmetry
- (G) dogs
- (H) Most plants
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Let's think first: Adult echinoderms have radial symmetry. Sea urchins are echinoderms, in the same family as starfish. Adult sea urchins have radial symmetry.... So the answer is [(B)]

Which has specialized reproductive organs?
Options:
- (A) Clouds
- (B) Conifers
- (C) River
- (D) peachleaf willow
- (E) Venus flytrap
- (F) animals
- (G) mammals
- (H) Mountain
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Let's think first: Plants have specialized reproductive organs. Most people know that the Venus Flytrap is a carnivorous plant. The Venus Flytrap has specialized reproductive organs.... So the answer is [(E)]

What is not made up of cells?
Options:
- (A) an object
- (B) Veins and arteries.
- (C) Tobacco mosaic
- (D) an organism's body
- (E) Conifers
- (F) sensory neurons
- (G) layers of fat
- (H) the digestive system
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Let's think first: Viruses are not cells. Viruses include the Tobacco Mosaic Virus. Tobacco mosaic is not made up of cells.... So the answer is [(C)]

What do dolphins use to store energy?
Options:
- (A) saturated fatty acids
- (B) thermal insulators
- (C) kinetic energy
- (D) evaporation
- (E) Something coming from a gland
- (F) objects that have mass
- (G) it helps plants in growing
- (H) Positive charges
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Let's think first: Animals use saturated fatty acids to store energy. Dolphins are a very unique animal. Dolphins use saturated fatty acids to store energy.... So the answer is [(A)]