Cancer is characterized by cells doing what out of control?
Options:
- (A) massive damage
- (B) smoking tobacco
- (C) destroying
- (D) replicating
- (E) Localized damage
- (F) failing
- (G) disappearing
- (H) Smoking
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Let's think first: Cancer is a disease in which cells divide out of control. Cancer is a family of diseases that is characterized by cells that replicate too rapidly. Cancer is characterized by cells replicating out of control.... So the answer is [(D)]

Cells cannot live without what commonly occuring element found on earth?
Options:
- (A) Air
- (B) matter
- (C) Light
- (D) fossil fuel
- (E) oxygen
- (F) carbon
- (G) sunlight
- (H) water
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Let's think first: Cells cannot survive without oxygen. Survival is to live, to live means hope. Cells cannot live without oxygen.... So the answer is [(E)]

What gas is produced by burning propane?
Options:
- (A) Greenhouse gases
- (B) Sulfur dioxide
- (C) gasoline
- (D) Carbon monoxide
- (E) hydrocarbons
- (F) carbon dioxide
- (G) dangerous
- (H) heating liquids
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Let's think first: Carbon monoxide is a gas produced by furnaces and other devices that burn fuel. Cabins have wood burning stoves and propane furnaces. Carbon monoxide is a gas produced by burning propane.... So the answer is [(D)]

Roundworms can be free-living or live on a what?
Options:
- (A) soil
- (B) nest
- (C) host
- (D) root
- (E) stem
- (F) habitat
- (G) food
- (H) commune
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Let's think first: Roundworms may be free-living or parasitic. Parasites Shortfin makos host a variety of parasitic copepods. Roundworms may be living on a host or free-living.... So the answer is [(C)]

How does a squid produce?
Options:
- (A) Energy.
- (B) photons
- (C) voltage
- (D) sexually
- (E) Energy
- (F) bioaerosols
- (G) waves
- (H) food
--
Let's think first: Mollusks reproduce sexually. Interestingly, a squid is also a mollusk. Squids produce sexually.... So the answer is [(D)]

Conventional myosin is required for the final stage of what?
Options:
- (A) Energy.
- (B) sweating
- (C) cell division
- (D) flow of electrons
- (E) Plants growth
- (F) Dehydration
- (G) movement
- (H) rapid expansion
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Let's think first: Cytokinesis is the final stage of cell division in eukaryotes as well as prokaryotes. Conventional myosin is required for cytokinesis . Conventional myosin is required for the final stage of cell division.... So the answer is [(C)]