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Echinodermata

Question 28 H...

Question

Question 28
Hard calcium carbonate structures are used as skeleton by

(a) Echinodermata
(b) Protochordata
(c) Arthropoda
(d) Nematoda

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Solution

(a) Echinodermata

Hard calcium carbonate structures are used as a skeleton by Echinodermata.It is a characteristic feature of Echinodermata.

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Q. Question 28
Hard calcium carbonate structures are used as skeleton by

(a) Echinodermata
(b) Protochordata
(c) Arthropoda
(d) Nematoda

Q. Hard calcium carbonate structures are used as skeleton by_______________.

Question 7
In which group of animals, coelom is filled with blood?

(a) Arthropoda
(b) Annelida
(c) Nematoda
(d) Echinodermata

Q. Which among the following contains hard calcium carbonate structures as the constituent part of their skeleton?

Q. From the features given below, identify the phylum A, B, C with the example.

\begin{matrix} A & B & C Bilaterally symmetrical & Bilaterally symmetrical & Bilaterally symmetrical Pseudocoelomate & Open circulatory system & Marine animals Parasitic worms & Reduced coelomic cavity & Notochord \end{matrix}

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