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What is a Vertebrate?
Fish
Amphibians
Reptiles
Key Terms
100
An animal with a backbone
What is a vertebrate?
100
An ectothermic vertebrate that lives in water and has fins and scales
What is a fish?
100
Double life
What does the word "amphibian" mean?
100
Eggs, skin, and kidneys
What are three adaptations for conserving water?
100
A flexible, strong tissue that is softer than bone
What is cartilage?
200
Three functions of an endoskeleton
What are support, protects, gives shape, and give muscles a place to attach to
200
to get oxygen from the water
What is the function of gills?
200
Upper chambers of an amphibian's heart
What are the atria?
200
Removes wastes from a reptile's blood
What are kidneys?
200
Watery fluid in which wastes produced by an animal's cell is excreted
What is urine?
300
Name three groups of ectotherms
What are fish, amphibians, and reptiles?
300
Helps a fish stabilize at different depths in water
What is a swim bladder?
300
Strong skeletons and muscular limbs
What are two adaptations amphibians have for moving on land?
300
Enables a snake to eat large prey
What are specialized jaws?
300
The force that water exerts upward on any underwater object
What is buoyant force?
400
Small bones that line up in a row to form a backbone
What is a vertebra?
400
Jawless, cartilaginous, and bony
What are the three main groups of fish?
400
Specific environment in which an animal lives
What is a habitat?
400
Reptiles whose bodies are covered by a protective shell
What are turtles?
400
Phyla whose members have a notochord, a nerve cord, and pharyngeal slits in their throat at some point in their lives
What is a chordate?
500
Name two groups of endotherms
What are birds and mammals?
500
Limiting fishing through quotas and raising fish in fish farms
What are two ways people are trying to alleviate the problem of over fishing?
500
Ectothermic vertebrate, spends early life in water and later life on land
What are the main characteristics of amphibians?
500
Part of a reptile's egg that provides the embryo with food
What is the yolk?
500
A scientist who studies extinct organisms and examines fossil
What is a paleontologist?