Question

Match the following organisms with their respective respiratory organs.

Organism	Respiratory Organ
1) Fish	A) Moist skin
2) Amoeba	B) Tracheae
3) Insects	C) Cell Membrane
4) Earthworms	D) Gills

• A. 1 - A, 2 - C, 3 - B, 4 - D
• B. 1 - D, 2 - C, 3 - B, 4 - A
• C. 1 - C, 2 - A, 3 - B, 4 - A
• D. 1 - D, 2 - C, 3 - A, 4 - B

Answer 1

The correct option is B

1 - D, 2 - C, 3 - B, 4 - A

Like human beings, animals and plants also require to respire. Amoeba being unicellular organisms respire directly through their cell membrane by diffusion. Earthworms breathe through their moist skin and if their skin dries, they begin to suffocate. Insects like cockroaches consist of a network of tubules within their bodies known as tracheae which enable gaseous exchange. Their tracheae is connected to openings on their bodies called spiracles through which air enters. Fish make use of a special respiratory organ known as gills to breathe underwater.