Spiny Bodied Animals

sand dollar

sea cucumber

sea urchin

star fish

brittle star

1. They all have 5 part if their is more than something is wrong with them.
2. Echinoderms tentacles  like structures like tube feet.
3. They have no brain,heart or eyes.
4. Their mouth is on the back side.
5. They have to live in the water or they will die.

Arthropods

butterfly insect

crab crustacean

spider arachnid

centipede myriapod

1. They all have exoskeleton's it protects the organs inside their body. 
2. Their  is  millions of arthropods around us.
3. They must molt ore shed their exoskeleton as they grow because it doesn't come with it
4. They are the largest group of animals because they are divided into smaller group with similar characteristics.
5. Their are different group called insects, myriapod ,arachnid and crustacean.

Segmented Worms

earth worm

leeches

clam worm

1.  They are more complex then mollusks.
2. They are more complex because they have organ systems for digesting food.
3. They have bodies that are divided into rings, or segments.
4. Some live in water and some live on land.
5. They come in all different sizes.

Mollusks

octupus

oyster

slug

squid

clam

snail

1. Snails have one shell & clams and oysters have two shells.
2. Some people eat them snails and other mollusks for supper.
3. They eat all different kinds of food.
4. Octopus have 10 legs and squids have 8.
5. They each have a muscular foot.

Roundworms

roundworms

1.  Never walk barefoot out side because roundworms could get in your foot or hand.
2. They are more complex than flatworms.
3. They have two openings so their waste comes out side one and the food comes in one side.
4. They live in animals, and human and some live in the ocean.
5. Many roundworms are called parasites.

Flatworms

1. Flatworms are more complex then sponges and stinging -celled animals.
2. Their solid bodies have only one opening so what comes in that comes out of it.
3. They are made out of tissue they yous it for sensing their surroundings.
4. If they get a chunk out of them it will regenerate.
5. A flatworm may live in other animals like cows,pigs,fish,and humans.

planarian

tapeworm up close

fluke flatworm

Stinging-Celled Organisms

sea anemone

jellyfish

coral

1. They all have stingers to protect them self.
2. Stinging -celled animals like jellyfish come in all sizes big of small.
3. coral can die you can know if they die because they will be stuck to the ground.
4.  All these organisms have tentacles.
5. They all live in the ocean.

   

   hydra