Question

Identify two advantages of breathing air instead of water.

A) Oxygen availability, Temperature regulation
B) Buoyancy, Acidic environment
C) Pressure regulation, Carbon dioxide elimination
D) Water filtration, Hydrostatic support

Answer 1

The advantages of breathing air instead of water include higher oxygen availability and the ability to regulate pressure.

Step-by-step explanation:

Two advantages of breathing air instead of water are:

1. Oxygen availability: Air contains a higher concentration of oxygen compared to water, making it easier for organisms to obtain the oxygen they need for respiration. Terrestrial organisms have specialized respiratory structures like lungs or tracheal tubes to efficiently extract oxygen from the air.
2. Pressure regulation: Unlike water, air is compressible, allowing organisms to adjust the pressure in their respiratory system. This is important for regulating air flow and preventing damage to delicate respiratory structures.