Question

Name the respiratory organs of mosquitoes and earthworms.

Answer 1

Hint:Respiration is the process of exchange of gases. Respiratory organs are not well developed in simple organisms so different organisms have different modes to respire. Mosquitoes belong to Arthropods and earthworms belong to the phylum Annelida.

Complete answer:
In Earthworm:
They lack specialized organs for breathing. They respire through moist, thin, highly vascular skin body surfaces. Earthworm lives in moist soil and moist its body, also glands of epidermis secretes mucus and dorsal pore ooze out coelomic fluid. Oxygen from the atmosphere dissolves in these fluids and diffuses into blood through the skin and carbon dioxide is released out by skin. This type of respiration is cutaneous respiration.
In Mosquitoes:
Mosquitoes are insects, they have trachea for breathing. They neither breathe through mouth nor through the nose, but oxygen enters their body by small pores called spiracles. Spiracles are covered by hair to prevent dust and other particles from entering inside. Trachea are made up of chitinous rings. The trachea is divided into tracheoles, and further thinner tubes that reach inside the body.
The larvae of insects like mosquitoes live in water and breathe through a siphon.

Additional information:In humans, the respiratory system consists of various organs and tissues which help in breathing. The various parts of respiratory system in humans are,
>Nose - The air is inhaled from the two openings present in the nose
>Larynx - It is present as a point where pharynx and trachea join
>Pharynx - It helps in preventing the entry food particles into windpipe
>Trachea - It is also known as the windpipe and extends into lungs as two different bronchi
>Bronchi - The bronchi is divided into small air sacs known as alveoli which help in exchange of oxygen and carbon dioxide
>Lungs - It is the chief centres of respiration in humans and helps in exchange of gases between the air and the blood

Note: In earthworm, oxygen transportation is done with the help of respiratory pigment - hemoglobin ot chlorocruorin.
Mosquito trachea is covered with a permeable tissue that stores air and helps the mosquito to balance when flying.