What is one thing viruses do not cause?
Options:
- (A) disease
- (B) AIDS
- (C) illness
- (D) cancer
- (E) Ebola
- (F) fever
- (G) death
- (H) smallpox
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Let's think first: Populations of viruses do not grow through cell division because they are not cells. Cancer is unregulated cell division. Cancer is not caused by viruses.... So the answer is [(D)]

What does vision give you?
Options:
- (A) ability to eat
- (B) characteristics
- (C) ability to taste
- (D) ability to sense light
- (E) ability to sense sound
- (F) It gets more light
- (G) Something that is self-aware
- (H) Your sensory system picks it up
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Let's think first: Sight is the ability to sense light, and the eye is the organ that senses light. Vision begins with sight. Vision is the ability to sense light and the eye is the organ that senses light.... So the answer is [(D)]

What is the primary item inside a virus?
Options:
- (A) Chemical energy
- (B) particles
- (C) genetic material
- (D) cytoplasm
- (E) electromagnetic energy
- (F) bioaerosols
- (G) food and shelter
- (H) bacteria
--
Let's think first: Viruses contain DNA but not much else. DNA DNA DNA is a person's genetic fingerprint. Viruses contain genetic material and not much else.... So the answer is [(C)]

Biomes that have suffered mainly from pollution have water that contains little or no what?
Options:
- (A) Toxins
- (B) CO 2
- (C) liquid
- (D) salt
- (E) Lead
- (F) Carbon
- (G) Acids
- (H) sulfur
--
Let's think first: Freshwater biomes have water that contains little or no salt. Freshwater biomes have suffered mainly from pollution. Biomes that have suffered mainly from pollution have water that contains little or no salt.... So the answer is [(D)]

How do some insects communicate?
Options:
- (A) sound
- (B) sensory neurons
- (C) Decibels
- (D) electronic waves
- (E) progesterone
- (F) Vibrates
- (G) pheromones
- (H) radio waves
--
Let's think first: Ants communicate with chemicals called pheromones. Ants are of extreme importance in the insect world. Some insects communicate with chemicals called pheromones.... So the answer is [(G)]

All of what have a characteristic life cycle that includes alternation of descendants?
Options:
- (A) Conifers
- (B) flowers
- (C) apples
- (D) plants
- (E) amoeba
- (F) Trees
- (G) Oak
- (H) Spruce
--
Let's think first: All plants have a characteristic life cycle that includes alternation of generations. Descendant includes descendants of all generations. All plants have a characteristic life cycle that includes alternation of descendants.... So the answer is [(D)]