Question

vertebrate classifications
mammals reptiles amphibians
birds fish
use the clues to identify the vertebrate group.
1.
these animals are warm - blooded. they lay eggs and take care of their young.
2
these animals are warm - blooded. they have hair or fur on their bodies. their young do not hatch from eggs.
3.
these animals are cold - blooded. they breathe with gills when young, but they grow lungs when they become adults.
4.
these animals are cold - blooded. they breathe with gills throughout their lives.
5.
these animals are cold - blooded. they have dry, scaly skin. and breathe air through lungs.

Explanation:

1. Birds are warm - blooded, lay eggs, and take care of their young.
2. Mammals are warm - blooded, have hair or fur, and their young do not hatch from eggs.
3. Amphibians are cold - blooded, breathe with gills when young and grow lungs as adults.
4. Fish are cold - blooded and breathe with gills throughout their lives.
5. Reptiles are cold - blooded, have dry scaly skin, and breathe air through lungs.

Answer:

1. birds
2. mammals
3. amphibians
4. fish
5. reptiles