ASAP PLEASE

How do some cold blooded animals keep their bodies at a constant temperature in cooler environments?
By generating their own heat
By heating themselves in sunlight
By breaking down water and glucose
By shivering
NO GUESSING PLEASE!:)

During the process of meiosis, special cells called gametes are formed. gametes only have half the number of chromosomes that the other cells in the body have. what form of reproduction do organisms that produce gametes use?

Which process of living things produces water that enters the water cycle

In trying to determine whether dna or protein is the genetic material, hershey and chase made use of which of the following facts? a) dna contains sulfur, whereas protein does not. b) dna contains phosphorus, whereas protein does not. c) dna contains nitrogen, whereas protein does not. d) dna contains purines, whereas protein includes pyrimidines.