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Life Science
Life Science Chapter 16 Lesson C Review Questions (Echinoderms)
Question | Answer |
---|---|
What is the function of the hard plates and spines in a starfish? | Predators can't eat them |
Where are a starfish's tube feet located? | Underside which act as suction cups |
Where is the mouth located? | Underside |
Why does a starfish not need teeth? | Starfish do not chew food or need to bite. They invert their stomach to digest food. |
What starfish characteristic does the term echinoderm describe? | need answer |
The phylum Echinodermata includes | starfish, sea brittles, sanddollars, feather stars, sea cucumbers and sea urchins |
Echinodermata means | spiny skinned |
Where would echinoderms live? | Ocean |
Echinoderms have ___________ symmetry | radial |
Do echinoderms have hearts, brains or eyes? | No |
Describe how a starfish gets its food. | Starfish use their water-vascular system and tube feet to pry open a clam or mussel shell and invert their stomach into the shell surrounding the mollusk and digest it. |
Explain how a starfish moves. | need answer |
What type of system does a starfish have that it can use to move its tube feet? | Vascular system |
If a starfish looses an arm what will happen? | Regenerate |
Are starfish carnivores or herbivores? | Carnivores |