Science Kids: Exploring the World of Invertebrates

The video explores the animal kingdom, focusing on invertebrates, which make up 97% of all animals. It covers their characteristics, such as lacking a backbone, being multicellular, and heterotrophic. The video delves into specific invertebrates like sponges, worms, mollusks, arthropods, and echinoderms, highlighting their unique features and ecological roles. Invertebrates are crucial for ecosystems, serving as pollinators, food sources, and contributors to nutrient cycles.

Which group of animals includes those with backbones?

• Fish

• Vertebrates

• Invertebrates

• Mammals

What percentage of Earth's animals are invertebrates?

• 50%

• 75%

• 88%

• 97%

What is a common characteristic of all invertebrates?

• They have a backbone

• They are unicellular

• They can make their own food

• They are heterotrophic

What type of symmetry do jellyfish exhibit?

• No symmetry

• Asymmetry

• Radial symmetry

• Bilateral symmetry

Where do sponges primarily live?

• All of the above

• Freshwater

• Saltwater

• Desert

What are the ring-like segments on a worm's body called?

• Mantle

• Annuli

• Setae

• Spicules

Which of the following is a mollusk?

• Lobster

• Butterfly

• Snail

• Spider

What is a unique feature of arthropods?

• No limbs

• Radial symmetry

• Exoskeleton

• No sensory organs

Echinoderms are found in which type of habitat?

• All of the above

• Freshwater

• Desert

• Saltwater

What does the term 'echinoderm' mean?

• Sea dweller

• Ocean creature

• Shiny object

• Spiny skin