name the branch of biology that deals with the study of animals and plants in different parts of world.

If you want to double a batch of brownies you must have double the ingredients before you start cooking similarity a cell must double its contents including its dna prior to dividing

If a young male's body is just beginning the process of producing sperm, when is it likely that he would ejaculate mature, viable sperm"

In the controversial scientific process of cloning, organisms are created that are genetically identical to there parent. this process would be classified as