Ncert Exercises & Solutions

Given below are types of cells present in some animals. Which of the following cells can differentiate to perform different functions?

1.	choanocytes
2.	interstitial cells
3.	gastrodermal cells
4.	nematocytes

(b) Interstitial cells are the totipotent cells in the body of cnidarians that are capable of giving rise to any kind Specialised cells to perform different functions,

Choanocytes or collar cells are associated with filtering nutrients in sponges.

Gastrodermal cells or the Cnidocystare usedin attachment and defence in cnidarians.

Nematocyst are capsules that are the specialised cells in Cnidarians, acting as a paralysing sting and use for defence purpose.

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