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प्रश्न
Mention one example each for animals with chitinous exoskeleton and those covered by a calcareous shell.
उत्तर
The body of arthropods (like cockroach) is covered by chitinous exoskeleton and molluscan (like Pila) body is covered by a calcareous shell.
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संबंधित प्रश्न
Sketch, labell and classify Octopus .
My body is soft and slimy, hence I am referred as ____________.
In which class, animals have soft body?
Ctenidia are respiratory organs in ______.
State whether true or false. If false, correct the statement.
Bipinnaria is the larva of Mollusca.
List the respiratory organs of amphibians.
Cuttlefish is a member of this phylum:
What is the role of radula in molluscs?
Differentiate between direct development and Indirect development
Match the following and write correct choice in space provided
| Animal | Characteristics |
| a. Pila | i. Jointed appendages |
| b. Cockroach | ii. Perching |
| c. Asterias | iii. Water vascular system |
| d. Torpedo | iv. Electric organ |
| e. Parrot | v. Presence of shell |
| f. Dog fish | vi. Placoid scales |
a. ______, b. ______, c. ______
d. ______, e. ______, f. ______
