Unit 4: Echinoderms, and Arthropods

Front

What type of circulatory system do arthropods have?

Back

Open circulatory system.

Front

What does the phylum name Echinodermata mean?

Back

Spiny Skin.

Front

What is the carapace in a fiddler crab?

Back

The hard outer shell that covers the crab's body.

Front

What is the water vascular system in echinoderms?

Back

A system of fluid-filled channels and tubes used for movement and feeding.

Front

What are antennules in crayfish?

Back

Shorter sensory appendages used for touch and taste.

Front

What is the main characteristic of arthropods?

Back

They have an exoskeleton made of chitin.

Front

What are the four main classes of arthropods?

Back

Insects, arachnids, crustaceans, and myriapods.

Front

What is the function of the uropod in crustaceans?

Back

Used for swimming and steering.

Front

What is the significance of the water vascular system in echinoderms?

Back

It allows for locomotion, feeding, and gas exchange.

Front

What is the role of the eyestalk in fiddler crabs?

Back

It supports the eyes and allows for better vision.