Autotrophs make food from what?
Options:
- (A) Converting waste.
- (B) members of their own species
- (C) Chemical energy
- (D) photosynthesis
- (E) that material's properties
- (F) inorganic molecules
- (G) Organic compounds
- (H) Chlorophyll
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Let's think first: Producers make food from inorganic molecules. Autotrophs are referred to as producers. Autotrophs make food from inorganic molecules.... So the answer is [(F)]

Vesicle transport is a form of _.
Options:
- (A) diffusion
- (B) animals
- (C) communication
- (D) movement
- (E) direct energy
- (F) resistance
- (G) Vibrations.
- (H) motion
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Let's think first: Vesicle transport requires energy, so it is also a form of active transport. Active transport is another form of diffusion. Vesicle transport is a form of diffusion.... So the answer is [(A)]

A parasites that can kill is called what?
Options:
- (A) bacteria
- (B) a carcinogen
- (C) A Greek letter
- (D) a pathogens
- (E) animals
- (F) an infection
- (G) insects
- (H) dangerous
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Let's think first: Some parasites kill their host, but most do not. Pathogens induce a disease in their host. Some parasites that kill are called pathogens, but most do not.... So the answer is [(D)]