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Question
Respiration in insects is called direct because ______.
Options
The tissues exchange `"O"_2/"CO"_2` directly with the air in the tubes.
The tissues exchange `"O"_2/"CO"_2` directly with coelomic fluid.
The tissues exchange `"O"_2/"CO"_2` directly with the air outside through the body surface.
Tracheal tubes exchange `"O"_2/"CO"_2` directly with the haemocoel which then exchanges with tissues.
Solution
Respiration in insects is called direct because tracheal tubes exchange `"O"_2/"CO"_2` directly with the haemocoel which then exchanges with tissues.
Explanation:
With no particular respiratory organ present, direct respiration is the exchange of gases.
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RELATED QUESTIONS
What is the site of gaseous exchange in an insect?
Which set of animals have same respiratory organs?
Match the following and mark the correct options
| Animal | Respiratory Organ |
| A. Earthworm | i. Moist cuticle |
| B. Insects | ii. Gills |
| C. Fishes | iii. Lungs |
| D. Birds/Reptiles | iv. Trachea |
Name the organs of respiration in the following organisms:
Flatworm - ______.
Name the organs of respiration in the following organisms:
Birds - ______
Name the organs of respiration in the following organisms:
Frog - ______
Name the organs of respiration in the following organisms:
Cockroach - ______
