Question

how oxygen,carbon dioxide and other waste mayerial transported animals such as hydra and sponges

Answer 1

☸hey friend ☸

Animals such as sponges and Hydra do not posses any circulatory system. The water in which they live brings food andoxygen as it enters their bodies. The water carries away waste materials and carbon dioxide as it moves out. ... Carbon dioxideis removed as waste from the body through the during exhalation.

Answer 2

Answer:

it is the water by which food oxygen carbon dioxide and other waste materials transported in animals such as sponges and hydra .