Exam 30: An Introduction to Animal Diversity

The head end of an animal is known as its:

To include your eyes and ears in the same section, you would need to cut your body in which plane?

One true characteristic of all animals is that they:

The body of a bilaterally symmetrical animal can divided into two equivalent halves by more than one plane. ____________________

Which statement about the development of a coelom is FALSE?

Indeterminate cleavage takes place in ____ and is characterized by a pattern of development where the ultimate fate of each cell is ____.

An example of an animal that is a metazoan is a(n) sponge . ____________________

Protostomes exhibit radial cleavage. ____________________

Explain the classification animals on the basis of the type of body cavity present. Use correct terminology and give an example of each.

A true body cavity completely surrounded by ____ is called a coelom.

Diploblastic animals, such as cnidarians and ____, have only two germ layers, ectoderm and ____.

Which of the following characteristics about animals is FALSE ?

The first land animals likely moved onto land how long ago?

Brachiopods, phoronids, and bryozoans all have a ring of ciliated tentacles around the mouth. These animals are thus grouped as:

What molecular evidence have been found in cnidarians, which have radial symmetry, that is evidence to indicate cnidarians share a common ancestor with bilateral animals?

A marine invertebrate placed into freshwater would have difficulty surviving because:

As a scientist, which of the following would you use as evidence to propose changing the traditional animal phylogenies?

Hox genes have been identified in all bilaterally symmetric animal groups. ____________________

Which animal phylum has an asymmetrical body plan?

Deuterostomes are split into the Ecdysozoa and the Lophotrochozoa. ____________________