STUDY GUIDE: Animal Kingdom Flashcard

Front

What is a cnidarian?

Back

Cnidarians are a group of animals that include jellyfish, corals, and sea anemones. They are characterized by their stinging cells called cnidocytes.

Front

Which animal is classified as a cnidarian?

Back

Jellyfish.

Front

What is a mollusk?

Back

Mollusks are a diverse group of invertebrates that usually have a soft body and a hard shell. Examples include snails, clams, and squids.

Front

What type of organism has a hard shell and lacks a backbone?

Back

Mollusk.

Front

What is radial symmetry?

Back

Radial symmetry is a body plan in which body parts are arranged around a central axis, like in starfish and sand dollars.

Front

Which animals exhibit radial symmetry?

Back

Sand dollars and starfish.

Front

What type of vertebrate is a cow?

Back

A cow is a mammal.

Front

What are the main characteristics of mammals?

Back

Mammals are warm-blooded vertebrates that have hair or fur and produce milk to feed their young.

Front

Which of the following is a mollusk?

Back

Squid.

Front

What are the main characteristics of mollusks?

Back

Mollusks typically have a soft body, a muscular foot, and many have a hard shell.