Marine Invertebrates
Stingers
Mollusks
Outer Skeletons
Sea Stars
100

What are vertebrates?

People and animals with backbones.

100

What are jellyfish made of?

Jellyfish are made of about 95% water.

100

What are the three main parts of mollusks?

The three main parts of Mollusks are a head, a body, and a foot.

100

What are crustaceans?

Crustaceans are animals such as crabs and shrimp.

100

What is another name for sea stars?

Another name for sea stars is star fish.

200

What are invertebrates?

95% of Earth's animals that do not have backbones.

200

What is unique about jellyfish?

Jellyfish have no heart, brain, bones, or eyes.

200

How do the hard shells of mollusks protect them?

Mollusk's hard shells protect this creature's internal organs.

200

Which crustacean lives their lives in one place?

The crustacean that lives their lives in one place is the barnacle.

200

What family are sea stars a member of?

Sea stars are a member of the echinoderm family.

300

What do all marine invertebrates have in common?

All marine invertebrates live in water, and they don't have backbones.

300

How do jellyfish move?

Jellyfish move by pumping water through their soft bodies.
300

How do Octopus protect themselves?

Octopus protect themselves by squirting ink into the water.

300

Which crustacean reaches out when water pours over them to get food?

The barnacle is the crustacean that reaches out when water pours over them to get food.

300

What does echinoderm mean?

Echinoderm means spiny skin in the greek language.

400

How are invertebrates different from vertebrates?

Invertebrates do not have backbones. Vertebrates have backbones.

400

What is another name for jellyfish?

Another name for jellyfish is stingers.

400

What can the octopuses do that other mollusks can't?

Octopuses are able to swim while other mollusks move slowly on the ocean floor.

400

Are crustaceans vertebrates or invertebrates?

Crustaceans are invertebrates.

400

How are sea stars and sea cucumbers able to crawl along the ocean floor?

Sea stars and sea cucumbers are able to crawl along the ocean floor because they have rows of tiny feet shaped like tubes. When water enters the tubes, they expand and the movement allows them move along the ocean floor.

500

How does the ocean help invertebrates?

The ocean allows marine invertebrates to move around easily.

500

How do jellyfish protect themselves?

Jellyfish protect themselves by using their stinging tentacles that contain poison.

500

What does the head of a mollusk contain?

The head of a mollusk contains sense organs and a brain.

500

What do crustaceans and humans have in common?

Both humans and crustaceans have joints in their bodies.

500

Which echinoderm is named after a shape of food?

Sea cucumbers are named after a shape of food..