Question

properly. moisture is necessary to facilitate chemical reactions, transport nutrients, and maintain an organisms body temperature. other important abiotic factors include chemical nutrients in soil (such as nitrogen, phosphorus, and potassium), salinity (saltiness of water), ph (a measure of an environments acidity), and dissolved oxygen in bodies of water. which abiotic factor is most important for aquatic organisms to breathe? a. ph b. salinity c. dissolved oxygen d. temperature

Explanation:

For the first part, moisture does not provide structural support to organisms. It helps in transporting nutrients, facilitating chemical reactions and regulating body - temperature. For the second part, aquatic organisms need dissolved oxygen to breathe. pH affects their overall environment, salinity affects osmotic balance and temperature affects metabolic rates, but dissolved oxygen is crucial for respiration.

Answer:

1. C. Providing structural support
2. C. Dissolved oxygen