To survive, all organisms must be able to carry out basic functions, regardless of their classification. Describe a biological process carried out by all organisms that suggest they are a common origin. How do
Explain the classification of animals based on the germ layers present during their embryonic development. Which animals are bilateral with a tubular gut a coelom and conspicuous segmentation, inside and out? a. Sponges. b. Annelids. c...