1.What organ is characteristic of mollusks?
2. What is the chief advantage that the eye of a dragonfly has over the eye of a hawk?
3. Although amphibians were the first animals to move onto dry land, they were still dependent on water for reproduction and lor respiration. What evolutionary adaptations allowed reptiles to become the first "true" land vertebrates?
4. Distinguish between the three types of mammals on the basis of their modes of reproduction.
Give exs of each.