alleryStart learning →Of what is the coral skeleton made?
ASilica crystals
BChitin layers
CCalcium carbonate
DSpongin fibres
Answer & Solution
Correct answer: C. Calcium carbonate
Corals secrete a hard skeleton composed of calcium carbonate.
Keep practising Zoology Unit 3: Animal Diversity-I: Invertebrate Phyla
Browse all Zoology Unit 3: Animal Diversity-I: Invertebrate Phyla questions for AP EAMCET, or explore more Biology topics.
Related questions
Which phylum is acoelomate, has flame cells and shows organ level organisation?Which phylum is diploblastic and has comb plates for locomotion?Which phylum is the first triploblastic group in the animal series?Metamerism is best seen in which animal?Which group is pseudocoelomate?A body cavity lined by mesoderm is called what?Triploblastic animals have a third germinal layer called what?What lies between the ectoderm and endoderm in diploblastic animals?