Question

1) A chemoautotroph would use _____ as an energy source.

A	carbon dioxide

B	chemical bonds within high energy molecules

C

sunlight

D	heat energy

2) A photoheterotroph would use _____ as a source of carbon atoms.

A	high energy organic molecules (e.g., sugars)

B

sunlight

C	carbon dioxide

D	inorganic molecules

3) Biologists sometimes divide living organisms into two groups: autotrophs and heterotrophs. These two groups differ in _____.

A	their electron acceptors

B	their mode of nutrition

C	the way that they generate ATP

D	their sources of energy