Invertebrate NotesBy: Megan Steele

CnidariaExample: Jellyfish (ms)

Definition-An animal with tentacles that have the ability to sting its prey or predators.

Body systems-Jellyfish are shaped like umbrellas and everything is arranged around the mouth.

Reproduction-Cnidaria reproduce both sexual and asexual. In jellyfish meduce release sperm and egg cells into water.

Food-Jellyfish sting there prey and pull it toward there mouth… later they bring the waste out of there mouth witch is also there exiting hole.

Habitat-Jellyfish can be found in sea’s a crossed the world in the cold artic to the warm tropical sea’s of the pacific and Indian ocean.

Predators-The jellyfish’s predator's are the ocean sunfish. They will consume jellyfish of various sizes.

Fun Facts-Some jellyfish live near the surface and others live deep in the water. Jellyfish have been on the earth for over 650 million years.

NematodesExample: Hook Worms (ms)

Definition- An animal with a round tube like body that has digestive system with two openings.

Body System- They have a nervous system they have a brain and other organs.

Reproduction- They can only reproduce asexual by cutting in half or pieces off.

Food- They eat any organisms they live in and they have 2 opening 1 is the mouth and the other is the digestive.

Habitat- sometimes they live in the ground but other places are other organisms.

Predators- Fish is a predator and a man made predator is a fishing hook.

Fun Facts-They live in organisms for life and food.

Mollusk Example: snail (ms)

Definition-An animal with a soft body and no bones. Body system- Mollusks have a muscular foot. They use it

to burrow into the sand on the ocean floor. Reproduction-Mollusk reproduce sexually. They release

eggs and sperm into water where there egg is fertilized. Food- Snails have an organ called a radular it is shaped

like a tongue. They use it to cut through hard surfaces like clamshells so they can get there food.

Habitat- snails live on land and others live in salt water or fresh water.

Predators- Ousters and giant clams are predators to snails. People overharvest these snails for there unique shells.

Fun Facts- The giant African snail grows up to a length of 6 inches.

Echinoderms Example: starfish (ms)

Definition- An invertebrate that has an internal skeleton and spines that are part of its skin.

Body System- Most echinoderms have five arms that are attached at the center of the body.

Reproduction- A sexual reproduction in echinoderms usually involves the divides of the body into two more parts.

Food- Echinoderms have suckers on there feet that allows them to captor there prey.

Habitat- They live in only the ocean. They get oxygen from the sea water. Predators- Sharks, Bony Fish, and Gastropods are predators of a

Echinoderms. Fun Facts- The mouth is in the center of the underside of the

body.

Jellyfish funny pics:Very funny!!!!!!!!!

Thank you for Watching

By: Megan Steele!!!