Question

WHAT ARE THE THREE ADVANTAGES OF RESPIRATORY SURFACES IN TERRESTRIAL ORGANISM.

Answer 1

Respiratory surfaces have three advantages:

1. They have large surface area.

2. They are richly supplied with blood vessels

3. They have thin walls for easy exchange of gases.

Answer 2

♤The amount of oxygen dissolved in water is fairly low as compared to the amount of oxygen present in air.

♤ the rate of breathing in aquatic organisms is much faster than that seen in terrestrial organisms.

♤ Fishes take in water through there mouth and force it past the gills where the dissolved oxygen is taken up by the blood.