Phylum name that mostly consists of fishes, amphibians.
100
What are the three groups of fish? Spelling doesn't count... to an extent
Boney, cartilaginous, jaw-less
100
what are the two types of amphibians?
Frogs and salamanders
100
what are the three types of amphibians?
snakes and lizards,
crocodiles and alligators,
turtles
100
Amphibian means?
double life
200
What is a Notochord?
a flexible rob that supports the back
200
What do gills and lungs do for animals
allows oxygen to get into the blood
200
what is it called when a frog changes from the larvae (tadpole) to adult?
metamorphosis
200
most snakes only have one...
lung
200
which group adapted from reptiles?
mammals and birds
300
What does the internal skeleton do for an animal?
protects internal organs
gives body shape
place for muscles to attach
300
How to cartilaginous fish obtain food
generally they are carnivores. They eat food with their teeth.
300
what differences are there between obtaining food as a tadpole and adult frog?
Tadpoles are herbivores and most adults are carnivores
300
_____________ are reptiles whose bodies are covered by a protective shell.
turtle
400
What is the difference between ectotherms and endotherms
Ectotherm- does not produce much body heat. Obtains heat from its environment
Endotherm- body controls temperature
400
What is a swim bladder?
internal sac that helps the fish swim at different depths of water
400
Describe the circulatory system of an amphibian.
air into lungs, to heart, to body, to heart, back to lungs
400
how do reptiles reproduce?
laying eggs
400
How does an ectotherm animal warm up and cool down?
Sits in the sun, goes in the shade or water
500
What gives a backbone flexibility?
The joints between the vertebrate give the backbone flexibility
500
What are the main characteristics of fish?
vertebrates that live in water,
move with fins,
most ectothermic,
obtain oxygen through gills,
500
Why are amphibians more sensitive to changes in their environment?
Amphibians have thin skin and their eggs don't have shells while reptiles have think skin that protect them from pollution
500
How do reptiles conserve water? list 2 answers
Special kidneys that produce little water in the urine,
Thick, tough skin that holds water,
Eggs with shells and membranes.
500
tell the differences between the eggs of fishes, amphibians, and reptiles
Fish and amphibians' eggs are similar; they are soft eggs and can be fertilized outside of the host parent and laid in the water.
Reptiles eggs are adapted to conserve water and are laid on land.