Cos they were created like that
Answer: They should be able to have access and deal with food distributed homogeneously in 360 degreea
Explanation:
This is because radially symmetrical animals meet their environment equally from every sides or angle e.g sessile while Bilateral symmetrical animals can move actively in only horizontal direction, so that they can eat. E.g Arthropods
Answer:
both types of cells have a cell membrane
<span>Cytosis requires energy, and the production of energy depends on oxygen. Diffusion does not require energy.</span>
