The only two jawless fish are _______ and ______ that exist today
What is Hagfishes and Lampreys
100
Ectothermic vertebrates that have fins and gills
What is A Fish
100
Begging life in water other on land or double life
What is Amphibian
100
An ectothermic vertebrate that has lungs and scaly skin
What is A reptile
100
This animal is a ectothermic vertebrate that has wings and feathers
What is bird
200
The earliest vertebrates that had legs positioned directly beneath their bodies were _________
What is Dinosaurs
200
Fish that have no jaws and no scales
What is A Jawless Fish
200
Larva of a frog or toad
What is Tadpole
200
An egg with a shell and internal membranes that keep the embryo moist.
What is Amniotic Egg
200
An ectothermic vertebrate that has a four-chambered heart, and skin covered with fur or hair
What is mammal
300
An animals _______ is the specific environment in which it lives.
What is A Habitat
300
They use fins to move
What is A Fish
300
Adult reproduce sexually > Eggs are fertilized > Swimming Tadpoles > Hind legs develop > Front legs develop > The tail is absorbed and development is complete
What is Frog Metamorphosis
300
Ectothermic vertebrate that has a broad, rounded snout with not a lot of teeth visible
What is Alligator
300
the short, fluffy feathers that is specialized to trap in heat and keep the bird warm
What is Down Feathers
400
Egg-Laying Mammals are called ________
What is Momotremes
400
Have jaws, and scales, and skeletons made up of cartilage
What is A Cartilaginous Fish
400
The larva of ________ look like adults and most of them undergo a metamorphosis in which they lose their gills
What is Salamanders
400
Ectothermic vertebrate that has a pointed snout, with all their teeth visible
What is Crocodile
400
Every young mammal is fed with milk produced by organs in its mother’s body, what is this organ called?
What is Mammary Glands
500
Many birds have an internal storage tank called ________
What is Crop
500
Has jaws, scales, a pocket on each side of the head that holds gills
What is A Bony Fish
500
The organs if air-breathing vertebrates in which oxygen gas and carbon dioxide gas are exchanged between the air and the blood
What is Lungs
500
The scientists who study extinct organisms, examine fossil structure and make comparisons to present-day organisms
What is Paleontologists
500
The large muscle located at the bottom of the ribs of a mammal is?