Invertebrate Classification and Characteristics

Dr. Binocs introduces the Animal Kingdom, focusing on invertebrates, which lack a backbone. He explains the classification of invertebrates into worms, sea jellies, mollusks, anthropods, and sponges, detailing their characteristics and habitats. The video concludes with trivia about invertebrates, noting that they make up 97% of all animal species.

What are the two main groups into which the Animal Kingdom is divided?

• Amphibians and Reptiles

• Birds and Fish

• Invertebrates and Vertebrates

• Mammals and Reptiles

What is the defining characteristic of invertebrates?

• They have a backbone

• They have wings

• They lack a backbone

• They live in water

Which of the following is NOT a classification of invertebrates?

• Worms

• Sea Jellies

• Mollusks

• Mammals

What is a common characteristic of worms?

• They live in trees

• They have long, soft bodies with no legs

• They have hard shells

• They have wings

How do sea jellies capture their prey?

• By using their stingers

• By using their teeth

• By using their claws

• By using their tentacles

Which of the following is an example of a mollusk?

• Snail

• Jellyfish

• Spider

• Earthworm

What is unique about the skeleton of anthropods?

• It is inside their bodies

• It is outside their bodies

• It is made of cartilage

• They do not have a skeleton

Where do sponges generally live?

• On land

• In freshwater

• In trees

• In saltwater

How do sponges obtain their food?

• By scavenging

• By photosynthesis

• By filtering nutrients from water

• By hunting

What percentage of all animal species are invertebrates?

• 97%

• 75%

• 50%

• 99%