My body is moist and smooth. I lay eggs without a shell and live in or near the water. To what vertebrate class do I belong?

I am endothermic, have fur, and feed milk to my young. To what vertebrate class do I belong?

I am covered in dry scales and lay amniotic eggs with tough, leathery shells.  To what vertebrate class do I belong?

I am ectothermic, covered in scales, and use gills to breathe under water.  To what vertebrate class do I belong?

What are the 5 major classes of vertebrate animals?

Which vertebrate group includes ectothermic animals that can breathe through their skin and through their simple lungs and lay eggs without a shell?

Omnivores have bodies that are adapted to eat ______.

________ organisms cannot control their body temperature internally. Their temperature changes when the outside temperature changes.

Vertebrates have an internal skeleton, or _________, made of either bone or cartilage.

All mammals breathe using ________.

To what vertebrate class do humans belong to?

Which is NOT a characteristic of all Chordates?

The amniotic egg was important because it provided a complete environment for the embryo and allowed vertebrates to reproduce on ________ for the first time.

Which is NOT an adaptation for flight?