The phylum name, Echinodermata, translates as

In sea stars, the ____________ surface is the top of the animal and contains the madreporite.

The echinoderms are the first group of animals covered that are

Sea stars typically feed

Modern adult echinoderms have a form of symmetry known as

Members of the echinoderm class ______________ are called sea stars.

In sea stars, contraction of the _____________ force water into the tube feet of the water vascular system.

The __________________ serves as an inlet into the water vascular system.

In sea stars, a(n) _______________ groove runs along the underside of each arm.

The sea daisy belongs to the echinoderm class

The major secretory and absorptive structures of the sea star digestive system are the

Sea lilies and feather stars belong to the echinoderm class

Sea stars possess strands of tissue that encircle the mouth and run into the arms; these strands of tissue make up the _________ system.

Contractions of the body wall in some sea cucumbers may result in the expulsion of one or both respiratory trees, the digestive tract, and the gonads out through the anus in a process called __________________.

Sea cucumbers belong to the echinoderm class

_______________ function in cleaning the body surface of many echinoderms.

The function of Aristotle's lantern is ______________________.

Sea urchins and sand dollars belong to the echinoderm class

The skeleton of sea urchins consists of ten closely fitting plates and is called a(n) _____________.

Basket stars and brittle stars belong to the echinoderm class