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Animal Classification

Horizontales
A thin disc on the outside of the bodies of fish and reptiles
Organs fish use to breathe underwater
Something that makes a person or thing different
To force in a fluid
To feel something quickly or intensely
An invisible gas that animals must breathe to stay alive
A Greek man who was one of the first to classify animals
To shed skin
A young form of frogs and toads that has gills but no legs
A place where plants or animals live and grow
Unchanging
Verticales
A large group of fish
A triangular area where a river deposits sand and mud
The process that lets a plant or animal create one of their own kind
The stages of a living thing from birth until death
Someone who works to make change happen
Birds' feathers
A scientist who studies living things
Living or growing in water
To ooze out from the skin
A group of nerves that connects the brain to other parts of the body
A mammal such as monkey, ape or human
Poison produced by animals
A scientist who studies animals