How do insects and birds breathe?

Answer 1

# Tracheae, which are introverted rigid appendages of the abdomen through which air passes reaching the hemolymph, entering from lateral holes in the abdomen called spiracles, which can be closed. Flying insects have big tracheal dilatations called air sacs to store much air. # Tracheolae, which are similar to tracheae but smaller. # Gills; made of branchial appendages or appendage extroflexions with thin cuticle to allow gas excanges to tracheae, tracheolae or directly to the hemolymph. Insects breathe through a complicated structure of tubes (called tracheae and tracheoles) and air sacs. Oxygen is pulled into the body through openings in their abdomens called spiracles. Once the oxygen has been pulled in, the outer most vents close and the air is forced into increasingly smaller pipes known as tubules, until it reaches the required cells. i think bugs r nice

Answer 2

Insects breathe through spiracles on the skin, often on the abdomen. Birds breathe through lungs like we do.

Answer 3

The system that insects use to respire is called the tracheal system. This system is separate from the circulatory system and delivers oxygen to every cell of the body.

Answer 4

trachea and spiracles system

Answer 5

sperm cells