Answer:Movement makes dolphins stress which can make your insusceptible framework more vulnerable and the flare-up will spread to different dolphins and conceivably other species.
Answer:
you could do the second one. atp energy,carbon dioxide and water
Explanation:
And also to increase their chances of survival as they are prone to be killed by their predators. In frogs fertilization is external, means it takes place outside female body. So to increase the chances of fertilization frog produce large no. Of gametes and basically sprays them over eggs released by female.