MyQuestionIcon

6

You visited us 6 times! Enjoying our articles? Unlock Full Access!

Notochord

The nature of...

Question

The nature of endoskeleton in echinoderms is:

A

Chitinous

No worries! We‘ve got your back. Try BYJU‘S free classes today!

B

Silicious

No worries! We‘ve got your back. Try BYJU‘S free classes today!

C

Calcareous

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

D

Tunicin

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is C Calcareous
The skeleton of an echinoderm is an endoskeleton. Echinoderms have calcareous endoskeleton consisting of ossicles connected by a mesh of collagen fibres. These are known as spiny skinned animals.
So, the correct answer is option C.

Suggest Corrections

thumbs-up

0

Similar questions

Q. Endoskeleton of Echinoderms is made of__________.

Q. Echinoderms have endoskeletons made of ossicles.

Q. The endoskeleton of echinoderms is unique with respect to other invertebrates by having ........... in origin.

Q. Echinoderms are the first phyla to develop an endoskeleton.

Q. Fill in the blanks (A, B, C and D) from the characters given (1 to 6) and choose the option containing the correct matches.
I. Phylum Echinodermata are ...A....
II. Phylum Mollusca has a ...B....
III ....C... of Echinoderms is its distinctive character.
IV Echinodermata got their name from ...D....
Given characters
l . radially symmetrical
2. larvae
3. endoskeleton of calcareous ossicles
4. water vascular system
5. radula
6. mantle cavity

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

BIOLOGY

Watch in App

explore_more_icon

Explore more

Standard XII Biology

Join BYJU'S Learning Program

CrossIcon