Do all aquatic animals breathe oxygen dissolved in water?

Though rain forests are very dense in vegetation, adventurers find it easy to walkthrough rainforests .Why is it so?

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Rashi says plants in boreal forests and in deserts are similar in one way. Is she right ? if she is right what is the similarity?

class?

What is difference between respiration, burning and breathe?

sir

why animals grow only until a particular size but plants grow all their lives

find out which animals live in the foot hills of the himalayas . find out if the types of varieties of animals and plants changes as one goes higher into the mountain regions of the himalayas.

why are solids rigid and hard

Which living organisms help to maintain a constant level of oxygen in the air?

what prevents grass from breaking in windy condition?

 how do plants excrete?

Why are the animals living on mountains have thick skin or fur on their body?

what is the function of swollen petiole in water hyacinth?

difference between living and nonliving things