Match the cells listed under column I with their animal or animal groups under column III. Choose the answer, which gives the correct combination of the alphabets of the two columns.

Column I(Cells)
Column II(Animal Examples)
$1$ Nematocyst p Vertebrates
$2$ Choanocytes q Flat worms
$3$ Flame cells r Sponges
$4$ Erythrocytes s Coelenterates

t Round worms

1 =

2 =

3 =

4 =

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1 =

2 =

3 =

4 =

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1 =

2 =

3 =

4 =

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1 =

2 =

3 =

4 =

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Solution

The correct option is D $1 =$ s, $2 =$ r, $3 =$ q, $4 =$ p
The correct answer is option D
Nematocysts are specialized stinging cells found in Phylum coelenterata or Cnidaria. Choanocytes also called collar cells is a feature of Sponges.
Flame cells are excretory structures in Phylum Platyhelminthes commonly called flat worms.
Erythrocytes are the red blood cells found in vertebrates, they carry oxygen to the tissues in the animal body.

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	Column I(Cells)		Column II(Animal Examples)
$1$	Nematocyst	p	Vertebrates
$2$	Choanocytes	q	Flat worms
$3$	Flame cells	r	Sponges
$4$	Erythrocytes	s	Coelenterates
		t	Round worms