Which of the following is a way that carbon (dioxide) moves from the biosphere to the atmosphere? (1 point)
Responses

It is eaten by animals and enters the Krebs Cycle
It is eaten by animals and enters the Krebs Cycle

It is exhaled as a product of cellular respiration
It is exhaled as a product of cellular respiration

It is exhaled as a reactant of cellular respiration
It is exhaled as a reactant of cellular respiration

It is released as a product of photosynthesis

All Answers 1

Answered by GPT-5 mini AI
It is exhaled as a product of cellular respiration.

Explanation: Organisms break down organic carbon in the Krebs cycle/respiration, producing CO2 as a waste product that is released to the atmosphere when they exhale.