Show:
Classifying Invertebrates
Worms
Arthropods
Fish, Amphibians, Reptiles, Birds,
& Mammals
Try Your Luck
100
They usually live in the ocean and have no mouth, stomach, or other organs.
What are sponges?
100
A planarian is a type of this worm group.
What is a flatworm?
100
This is an arthropod with 5 pairs of legs and antennae.
What is a crustacean?
100
These animals make up the largest group of vertebrates.
What are fish?
100
This group of arthropods has many body segments and lives under rocks and in dark places.
What are millipedes and centipedes?
200
This is a flexible body part used to move or touch.
What is a tentacle?
200
This group of worms has many special organs and two body openings.
What are segmented worms?
200
Spiders, mites, and ticks make up this group of arthropods.
What is arachnids?
200
Alligators and turtles belong to this group of vertebrates.
What is reptiles?
200
An invertebrate with an unsegmented soft body that is often covered by a hard shell.
What is a mollusk?
300
An anemone is an animal that uses these to catch food and protect itself.
What are stinging cells?
300
This word means to regrow lost body parts.
What is regenerate?
300
An arthropod has this type of feet or legs.
What is jointed?
300
A vertebrate that begins life with gills and later develops lungs.
What is an amphibian?
300
Sea stars, sea urchins, and sand dollars belong to this group.
What are invertebrates with spiny skins?
400
These animals have stinging cells and swim by sucking water in through their mouths and then squeezing the water out again.
What are jellyfish?
400
The three groups of worms.
What is flatworms, roundworms, and segmented?
400
A hard covering that supports the body.
What is an exoskeleton?
400
These animals are warm blooded and make milk to feed their young.
What are mammals?
400
Feelers on the heads of arthropods.
What are antennae?
500
This animal stays in one place and builds their own rocky homes from minerals they take from water.
What is coral?
500
This animal lives in or on another organism.
What is a parasite?
500
These are the three main body sections of an insect, in order.
What are head, thorax, and abdomen?
500
Birds have oily feathers for this reason.
What is to make their feathers waterproof?
500
Besides breathing with lungs and gills, amphibians can also take in oxygen this way.
What is through their soft, moist skin?