Diversity in Living Organisms — Science STD 9 — Question
Gujarat BoardEnglish MediumSTD 9ScienceDiversity in Living Organisms1 Mark
MCQ
The skeleton of starfish is made up of:
✓
Calcium carbonate.
B
Calcium phosphate.
C
Potassium carbonate.
D
Potassium chloride.
✓
Answer
Correct option: A.
Calcium carbonate.
Although starfish are invertebrates, they do have a kind of skeleton. The bodies of starfish are composed of calcium carbonate plates, known as 'ossicles'.
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