Invertebrate Animal Adventures and Their Unique Traits

The video introduces invertebrate animals, highlighting six groups: arthropods, mollusks, worms, cnidarians, echinoderms, and sponges. Each group is explored in detail, discussing their characteristics, habitats, and interesting facts. The video emphasizes the diversity and ecological roles of these animals.

Which of the following is NOT a group of invertebrate animals?

• Mollusks

• Vertebrates

• Cnidarians

• Sponges

What is the primary characteristic of arthropods?

• They have no legs.

• They have an exoskeleton.

• They are all aquatic.

• They have a backbone.

Which group of arthropods has eight legs?

• Insects

• Arachnids

• Crustaceans

• Myriapods

What is a unique feature of mollusks?

• They have a hard exoskeleton.

• They are all terrestrial.

• They hatch from eggs.

• They have jointed legs.

Which group of mollusks is known for having no shell?

• Gastropods

• Cephalopods

• Arthropods

• Bivalves

How do worms primarily move?

• By flying

• By swimming

• By crawling using body muscles

• By jumping

What is the role of earthworms in soil health?

• They deplete nutrients.

• They help oxygenate the soil.

• They make the soil acidic.

• They prevent water absorption.

What is a characteristic feature of cnidarians?

• They have a backbone.

• They are exclusively terrestrial.

• They have tentacles with toxic substances.

• They have jointed legs.

Which echinoderm can regenerate its lost limbs?

• Sea lily

• Sea cucumber

• Starfish

• Sea urchin

What is a unique feature of sponges?

• They are all terrestrial.

• They feed through pores.

• They have a backbone.

• They can swim.