Fish, Amphibians and Reptiles

Question Answer
Name the 3 classes of fish. bony, jawless, cartilaginous
What trait allows reptiles to be suited for land? they lay amniotic eggs
Name the 3 groups of amphibians. salamanders, caecilians, frogs and toads
Why do they call some amphibians ecological indicators? they are sensitive to changes in the enviornment
What are characteristics of amphibians? they have thin skin, live in water and on land, they breathe through lungs
What do you call an animal that can control hits own body temperature? endotherm
What trait helps reptiles reduce their water loss? thick dry skin
How do reptiles usually reproduce? internal fertilization
How do most reptiles breathe? through lungs
What are the parts of an amniotic egg? yolk, allantois, albumen
What are the most common type of reptiles today? snakes and lizards
What type of animal do caecilians look like? earthworms
A lamprey is what kind of fish? jawless
What is the job of the lungs? to take in oxygen and exchange it with carbon dioxide
Which meat eating reptile has a narrow head and pointed snout and spends most of its time in the water? crocodile
Describe external fertilization in fish. a female lays unfertilized eggs and a male drops sperm on them
What are traits of cartilaginous fish? they are strong swimmers, expert predators, and have oily livers
What kind of eggs help protect an embryo? amniotic egg
What are tadpoles? immature fogs or toads that live in water
What is metamorphosis? when an immature animal form changes to adult form
Which animal lives on both land and water? amphibians
What saclike organ allows amphibians to breathe? lungs
What is a swim-bladder? a gas-filled sac that is used to control buoyancy
What is an ectotherm? an animal that relies on heat outside his body
What is an endotherm? animal that uses chemical reactions within the body to maintain a constant body temperature
Which type of animal has a backbone? vertebrates
What is the lateral line? a faint line on a the sides of a fish's body that sense vibrations in the water
What do the gills do? a respiratory organ where the oxygen in the water is exchanged with carbon dioxide
Which group of reptiles have shells? turtles and tortoises
What is the most common type of reptile? snakes and lizards
Which reptiles live only in New Zealand? tuataras