fish
What do fish use to breathe?
a: lungs
b:skin
c:gills
c:gills
Amphibians live on
a:land
b:water and land
c:water
b: water and land
Their body cover with ( )
scales
All birds can fly. This is true or false?
false
( ) are most complex vertebrates.
Mammals
How do fish reproduce? (external or internal)
external
What do frogs use to breathe?
lungs and skin
The function of their scales is
prevent loss of water.
Do birds have teeth?
no
3 main group of mammal
Monotremes; Marsupial; Placental mammals
What is the first vertebrate on Earth?
Fish
Amphibians are ectotherm or endotherm?
ectotherm
What do reptiles use to breathe?
lungs
Birds have urinary bladder. True or false?
false
Monotremes are ( )
a: ovipourous
b: vivipourous
c: cold-blooded
a
Are fish ectotherm or endotherm?
ectotherm
Do amphibians have scales?
no
They are ( )
a:endotherm
b:extotherm
b: ectotherm
1 function of feathers
keep warm
What is notocord
nerve cord or spinal cord
5 characteristics of fish.
breath with gills; close circulation system; ectotherm; external reproduction; heterotrophy
4 characteristics of amphibians
live on land and water; lay eggs; cold blooded; no hair or fur
3 characteristics of reptiles.
3 chambered heart; use lungs to breathe; closed circulation system
2 characteristics of birds
lay eggs; endotherm
2 characteristics of mammals
heart with 4 chambers; endotherm