test 2

Birds are mammals

• True

• False

The biggest group of vertebrates are

• fish

• mammal

• bird

• reptile

• amphibian

all birds can fly

• true

• false

no mammals can fly

• true

• false

How are mammals classified?

• 2 groups

  dogs & cats

• 3 groups

  monotrems, marsupials, & placentals