Say - Aquatic animals posses air sacs. in their bodyies . Give reasons.

Explanation:

1. provides more efficient supply level of oxgen.

science-ocean floors and habitats study guide by volleyballqueen3817 a major advance in ocean-floor mapping. list four sections of the ocean floor. algae that use sunlight to produce their own food through photosynthesis. all of the feeding relationships that exist in a habitat. drying out, predators, find food.