Concepts - understand the big picture

What are the costs and benefits of being an exotherm? 
          What environments favor this adaptation?
What are the costs and benefits of being an endotherm? 
          What environments favor this adaptation?
What are the benefits and costs of being a live bearer?
How do birds benefit by having nests instead of bearing their young alive?
How do land animals deal with dessication?
What structures did land animals evolve to allow their bodies to deal with gravity?

Facts -- get the details right

List three very different groups of animals that became adapted to live on land.
What are three important distinguishing characteristics of mammals?
What are two important adaptations that make reptiles different from amphibians?
Name two adaptive behaviors that allow animals to live through the winter.
What are the four stages in the life of an insect?
What structures do land animals use to obtain oxygen?

Picture It!

Draw the stages in the life cycles of these animals:
  an insect         an amphibian        a reptile         a bird         a mammal
Label the stages.