invertebrates
What are invertabrates animals?
animals without a backbones.
What are vertebrates animals?
Animals with a backbones?
What are mammals animals?
young vertebrate animals that are nourished with milk from mammary glands of the mother.
Name 2 invertabrates animals.
arachnida, insects
How to classify vertebrate animals?
cold blooded and warm blooded
How are mammals classified?
by their reproductive strategy: monotremes, marsupials, and placentals