Respuesta :
The answer is b plants release oxygen in photosynthesis and snail respire releasing CO2 so there is a cycle
Answer:
The correct answer is option B. "An jar with snails crawling on living plants".
Explanation:
A sealed container comprised of an jar with snails crawling on living plants, represents continuously cycle O2 and CO2 gases between the organisms. The plants produce O2 by consuming CO2 in the photosynthesis process, and the snails produce CO2 and consume O2 during the respiration process.