Biology 211 (5) ~ SI Worksheet #8 ~ www.si.iastate.edu ~ 9/23-07Chapter 32: Intro to Animal Diversity1.) What is the nutritional mode of animals?2.) What are the cell structure characteristics of animals?3.) How do most animals reproduce?4.) Does the haploid or diploid stage dominate the life cycle?5.) What is the difference between a zygote and an embryo?6.) Define Blastula.7.) Define Gastrulation.8.) What is the Blastopore?9.) What are Hox genes?10.) What is thought to be the common ancestor of all animals?11.) Describe the significance of the Cambrian Explosion. 12.) What is a grade and how is it different from a clade?13.) What are the four major features of the animal body plans?14.) What is the difference between radial and bilateral symmetry?15.) What is the definition of true tissues?16.) What are the three germ layers and what does each give rise to?17.) What is the difference between diploblastic and triploblastic?18.) Define a coelom.19.) What tissues give rise to a true coelom?20.) What is a blastocoel and what does it give rise to?21.) What are acoelomates?22.) Define Deterostome. 23.) Define
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