In the Carbon Cycle,________ from the Atmosphere Is Used in Photosynthesis

question 11

Multiple Choice

In the carbon cycle,________ from the atmosphere is used in photosynthesis to synthesize carbon-containing organic molecules in a process called ________.

• A)carbon dioxide; combustion
• B)carbon dioxide; carbon fixation
• C)hydrocarbons; oxidation
• D)hydrocarbons; cellular respiration

---

Definitions:

Community

A group of interacting living organisms sharing a populated environment, which can include various species in a specific area.

Competition

Results when members of a species attempt to use a resource that is in limited supply.

Secondary Succession

The process of ecological regeneration that occurs in an environment where a disturbance has destroyed a pre-existing community but left the soil intact.

Sequence of Events

The chronological arrangement or order in which events or steps occur.