Invertebrates

What is the main difference between vertebrates and invertebrates?

• Vertebrates have a backbone, invertebrates do not.

• Neither have a backbone.

• Invertebrates have a backbone, vertebrates do not.

• Both have a backbone.

What is the purpose of a squid's ink sac?

• To store food.

• To distract predators.

• To help the squid see better.

• To help the squid swim faster.

How do gastropods like snails and slugs move?

• By flying.

• By jumping.

• By using a muscular foot.

• By swimming.

Are you enjoying the video lesson?

• Yes

• No

What is a unique feature of cephalopods?

• They have no eyes.

• They live only on land.

• They can mimic their surroundings.

• They have a hard shell.

Why are worms important for soil health?

• They eat all the plants.

• They make the soil dry.

• They scare away predators.

• They help recycle nutrients.