How do biological processes influence the type and amount of gases dissolved in seawater?

Answer 1

Within the photic zone, photosynthesis absorbs carbon dioxide and releases oxygen. At all depths of the ocean, cellular respiration releases carbon dioxide.

Answer 2

Biological processes such as photosynthesis and respiration by marine plants and animals influence the type and amount of gases dissolved in seawater. During photosynthesis, marine plants absorb carbon dioxide and release oxygen, which increases the dissolved oxygen concentration in seawater. Similarly, during respiration, marine organisms consume oxygen and release carbon dioxide, which reduces the dissolved oxygen concentration and increases carbon dioxide levels. These processes play a crucial role in maintaining the balance of gases in seawater and supporting marine ecosystems.