Phylogeny Chapter 32a On Line Form
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Complete the questions using the chapters of your textbook
Campbell’s Biology (7th Edition).
CHAPTER 32 PART 1. Directions: All answers are to be completed on your own.
Question 1: Outline the major characteristics Campbell uses to define an animal.
Question 2: List an hypothesis for the origin of animals.
Question 3: Describe the two forms of symmetry of the Eumetazoa.
Question 4: What is the significance of cephalization as an evolutionary trend?
Question 5: How do the germ layers of Radiata and the other Eumetazoa differ?
Questions 6-13 Define the term and describe
its significance in classifying animals.
Question 6: Acoelomates
Question 7: Pseudocoelomates
Question 8: Coelomates
Question 9: Protostomes
Question 10: Deuterostomes
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Question 11: Spiral, determinate cleavage
Question 12: Radial, indeterminate cleavage
Question 13: Blastopore
Question 14: List a number of the major differences between the Protostomes and Deuterostomes.
Label the stages of early embryonic development of animal.