Lecture 19 Study Questions.pdf

Lecture 19: Animal Diversity II Study Questions: 1) Which specialized cells are specific to porifera? 2) What are the major evolutionary adaptations that first evolved in cnidarians? 3) What kind of specialized cells are specific to cnidarians? 4) What are the major evolutionary adaptations that fir...

Lecture 19: Animal Diversity II Study Questions: 1) Which specialized cells are specific to porifera? 2) What are the major evolutionary adaptations that first evolved in cnidarians? 3) What kind of specialized cells are specific to cnidarians? 4) What are the major evolutionary adaptations that first evolved in annelids? 5) What are the major characteristics of each of the three mollusk groups discussed in the lecture? 6) What is the significance of metamorphosis in insects? 7) What traits are shared by all deuterostomes, and what traits are specific to chordates alone? 8) What traits do all vertebrates share? 9) As animals evolved to exist in a dry, terrestrial environment, they had to evolve new ways of keeping their embryos from desiccating. How was this achieved in each of the following groups: amphibians, reptiles, birds, monotremes, marsupials, and placentals?