What structure is part of an echinoderms water vascular system?

Which of the following is most likely the result of an organism having lipids in its body a) water cannot be absorbed through the surface of a leaf b)human eats fruits to get a quick source of energy c) a sheep sleeps for more hours in the winter d) a warm river is filled with fish and algae

Achemical that is released by an animal as a signal to other members of the same species is called a pheromone. t or f

Which charactistic is a property of water ?