Complete the following paragraph to describe the characteristics of sea stars. C

Question

Complete the following paragraph to describe the characteristics of sea stars.

Complete the following paragraph to describe the characteristics of sea stars. Sea stars feed on ____, opening their shells with their ____. Once the shell is open, the sea star inserts its ____ and secretes enzymes that begin the digestion process. Later, food is returned to the sea star where it is further digested by the _____. Sea stars move through a ____system. Water enters through ____, through the ____ canal to the ____ canal and then to a ____ canal located within each arm. Lateral canals extend into the tube feet, each of which contain ____ that contract and expand to allow for movement. Sea stars reproduce ____ through fragmentation: if a body fragments, each piece will regenerate into a new sea star. Sea stars reproduce ____ by releasing eggs and sperm that become larva. These larva mature into adult sea stars. Stone tentacles bivalves pyloric stomach madreporites tube feet sexually arthropods asexually a cardiac stomach ampulla ring water vascular radial

Explanation / Answer

Sea stars feed on bivalves, opening their cells with their tentacles.

Once the shell is open, sea stars insert its pyloric stomach and secretes enzymes that begin their digestive process.

Later food is returned to the sea water where it is further digested by the tube feet

Sea stars move through water vascular system.

Water enters through the medreporites, through the stone canal to the ring canal and then to a radial canal located in each arm.

Lateral canals extend into the tube feet, each of which contain ampulla that contract and expand to allow for movement.

Sea stars reproduce asexually through fragmentation; if a body fragments, each piece will regenerate into a new sea star.

Sea stars reproduce sexually by releasing eggs and sperm that become larva. These larva mature into adult sea stars.

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