Asked by Anand Lakra on May 07, 2024
Verified
In insects, air enters through a ____ and is delivered to interstitial fluid.
A) lung
B) spiracle
C) anterior air sac
D) posterior air sac
E) gill
Spiracle
An external respiratory opening in some animals, particularly insects, spiders, and some fish.
- Comprehend the diverse methods of gas exchange across various species.
Verified Answer
PB
Philomera BamugyejonesMay 10, 2024
Final Answer :
B
Explanation :
In insects, air enters through small pores called spiracles and is then distributed to various tissues and organs via a series of air tubes called tracheae. The tracheae end in small, fluid-filled sacs called tracheoles, which are in direct contact with cells and deliver oxygen to the interstitial fluid. Insects do not have lungs or gills. Anterior and posterior air sacs are not present in insects either.
Learning Objectives
- Comprehend the diverse methods of gas exchange across various species.
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