Question

Which of the following could be caused by a decrease in carbon fixation?

Answer 1

Answer;

An increase in the total biomass of consumers in the world

Explanation;

• Carbon fixation is the process through which carbon dioxide is removed from the air and incorporated into an organic molecule.
• Carbon fixation occurs during the light independent reaction of photosynthesis and is the first step in the C3 or Calvin Cycle.
• The Calvin cycle uses the energy from short-lived electronically excited carriers to convert carbon dioxide and water into organic compounds that can be used by the organism.

Answer 2

Answer:

a decrease in the total biomass of consumers in the world

Explanation:

A decrease in carbon fixation would likely increase the amount of carbon dioxide in the air and decrease the amount of oxygen. This would change how much respiration and photosynthesis could take place, resulting in:

a decrease in the total biomass of consumers in the world,

an increase in the total biomass of producers in the world, and

a decrease in the size of insects and arthropods, since their ability to move oxygen from the air into and through their bodies is limited.