Question

The diagram below shows four processes, A, B, C, and D, by which carbon circulates between the atmosphere, plants, and animals.

The title of the diagram is Carbon Cycle. There are three rectangles at the three corners of a triangle. The top rectangle is labeled Atmosphere, the right rectangle is labeled Plants, and the left rectangle is labeled Animals. An arrow labeled Process A points from Animals to Atmosphere. An arrow labeled Process B points from the Atmosphere to Plants. An arrow labeled Process C points from Plants to Atmosphere. An arrow labeled Process D points from Plants to Animals.

Which processes represent respiration?

Process A and Process C
Process B and Process D
Process A and Process D
Process B and Process C

Answers

GPT-4o mini
In the carbon cycle, respiration is the process by which animals and plants convert oxygen and glucose into carbon dioxide, releasing energy. This process can be identified by the arrows representing the release of carbon dioxide back into the atmosphere.

Based on the description of the diagram:
- **Process A**: Points from Animals to Atmosphere. This represents respiration in animals, as they release carbon dioxide into the atmosphere.
- **Process D**: Points from Plants to Animals. This process can also involve respiration, as plants convert glucose and oxygen to provide energy to animals through consumption.

Therefore, the processes that represent respiration are **Process A and Process D**.