Classifying Animals Quiz

The video tutorial introduces key concepts in animal biology, including the inability of animals to produce their own food, the absence of a backbone in certain species, and the classification methods used by taxonomists. It covers examples of phyla such as sponges, earthworms, clams, and snails, and discusses the characteristics of echinoderms and arthropods. The tutorial concludes with a discussion on species diversity and the warm-blooded nature of birds and mammals.

Describe the skin of many echinoderms.

What can you tell us about the number of species of birds and mammals?