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Chapter 2 Lesson 3: What are Fish, Amphibians, and Reptiles?

Across
A hard plate that covers the gills of bony fish.
How reptiles keep warm
The coldest most darkest areas of the ocean
Have hair, fur, and mammary glands
Animals that have a constant temperature. Their temperatures do not swing.
A a male catfish fish that holds its offspring eggs in its mouth until they hatch
The part of the body that the amphibian uses to breathe as adults
The part of the body that the amphibian uses to breathe as young
An animal that eats meat
Normally found in tropical or subtropical waters, or deep waters
Animals that depend on the outside for heat
Have lungs and lay eggs ON LAND
A gas filled organ used to change or maintain depth in the water (so they don't float up!)
Amphibians (do, do not) have to drink water
Amphibians that live on land produce a ___ substance to waterproof themselves
A large collection of fish are sometimes called a _____
Ectothermic vertebrates include ____, amphibians, and reptiles
Down
The external organ that runs the length of a fish's body and consists of sensory cells
True or False? Most mommy reptiles stay with their eggs after they lay them.
Have feathers and lay eggs on land
Location where dissolved oxygen in the water enters the fish's bloodstream
Animals that produce heat internally
Live part of their life on land and part on water.
These animals are hairless, have clawed toes, lay eggs, and are mostly carnivores
A process where the body changes in shape or characteristics as it grows.
The jaws of snake must do this in order to eat
Bright colors are associated with this to ward of predators.
An animal with four limbs
The type of fish that returns to their place of birth
Have fins and gills