1. Photosynthesis and cellular respiration both contribute to the carbon cycle. Select all statements that are correct. * 2 points Photosynthesis removes carbon dioxide from the atmosphere. Cellular respiration returns carbon dioxide to the atmosphere. Photosynthesis returns oxygen to the atmosphere. Cellular respiration removes oxygen from the atmosphere. Cellular respiration and photosynthesis are not involved in the carbon cycle.

The correct statements are:

- Photosynthesis removes carbon dioxide from the atmosphere.
- Cellular respiration returns carbon dioxide to the atmosphere.
- Photosynthesis returns oxygen to the atmosphere.

Therefore, the correct answer is:
Photosynthesis removes carbon dioxide from the atmosphere.
Cellular respiration returns carbon dioxide to the atmosphere.
Photosynthesis returns oxygen to the atmosphere.