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30 Cards in this Set

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  • Back
Bony structures that protect the body
Scales
Organ the removes oxygen from the water
Gill
The __________ is responsible for removing carbon dioxide from the blood of a fish
Gill
How do most fish reproduce
External fertilization
How many different classes of fish are there today
3
Name the three classes of fish
Bony
Jawless
Cartilaginous
What class of fish has smooth slimy skin, a skeleton made of cartilage and a round jawless mouth
Carilaginous Fish
Lampreys and hagfish belong wo what class of fish
Jawless fish
Whta class of fishes has fully functional jaws, and are strong swimmers and expert predators.
Bony fish
Sharks, skates, and rays belong to what class of fishes
Cartilaginous Fish
This class of ish can stay in one place without swimming
Jawless Fish
Lobe-finned fish and and ray finned fish belong to what class and lungfishes
Bony fish
Amphibian means
Double life
Why do most amphibians live in damp areas
They can absorb water through skin
An immature frog or toad that must live in the water after hatching to survive is called a _________
Tadpole
A snake is an Amphibian. True or false
False
Caecilians do not have ________.
Legs
Most salamanders live on what continent
North America
Frogs and toads do not have _______.
Tails
What modern amphibian is most like prehistoric amphibians.
Salamander
How does a frogs vocal sac affect the volume of the frogs song
vocal sac increases volume of song
How are reptiles different from amphibians
Reptiles can spend almost all of life on land
Most well known prehistoric reptile
Dinosaur
Are reptiles endotherms or ectotherms
Ectotherms
What is the reptiles most important adaption to life on land
Amniotic egg
Runs along the back and is full of fluid, also called spinal or nerve cord
Hollow Nerve Cord
Internal fertilization
Male deposits sperm into the female
Internal fertilization
A saclike organ that takes oxygen fro the air and delivers oxygen to blood
Lung
Gives the body support and in most vertebrates it is replaced by a backbone
Notochord
These develop into gills or other body part as the embryo matures
Pharyngeal Pouches