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 |