Classifying Animals

Vocabulary

100

An animal with a backbone

Vertebrate

200

A gas filled organ that allows a bony to move up and down in the water.

Swim bladder

300

The process where an arthropod sheds its external skeleton.

Molting

400

A milk-producing structure on the chest or abdomen of a mammal.

Mammary glands

500

Animals who have bodies with a left and right half that are the same have what kind of symmetry?

Bilateral symmetry

Types of Vertebrates

100

These vertebrates mostly live on land (except for whales and porpoises) and they breathe with lungs. Humans, gorillas, and cows are some examples.

Mammals

200

These vertebrates have hollow bones and breathe with lungs. They have feathers to keep them warm and help with flying.

Birds

300

These vertebrates live in the water and breathe with gills.

Fish

400

These vertebrates have scaly, watertight skin so they can live in dry places. They lay eggs and breathe with lungs. Snakes and turtles are some examples.

Reptiles

500

These vertebrates spend part of their life on land and the other part of their life in the water. Adults breathe with lungs or through their skin. Frogs, toads, and salamanders are some examples.

Amphibians

Invertebrates

100

A class of arthropods that includes spiders, ticks, and scorpians.

Arachnids

200

A class of arthropods that include crabs, lobsters, and crayfish.

Crustaceans

300

There are more than 112,000 species of this invertebrate. They live on land, freshwater, or in the ocean. Clams, scallops, and octopus are a few examples.

Mollusks

400

This is the largest group of invertebrates. They have an internal skeleton that grows, which causes them to molt or shed their external skeleton. 

Arthropods

500

These invertebrates have arm-like stinging tentacles. They have body symmetry called "radial symmetry". They all live in water. Jellyfish and sea anemones are some examples. 

Cnidarians

Misc.

100

Squids and octopus capture prey with an arm-like body part. What is the name of this body part?

Tentacle

200

All vertebrates have a skeleton located where?

Inside of them

300

What is the name of the fish that has a skeleton made of bone.

Bony fish

400

These things allow animals to live and breathe on land. (Hint: humans have them)

Lungs

500

The change of a tadpole into a frog is an example of what?

Metamorphasis