Question

What are spiracles ?​

Answer 1

$\huge\underbrace\mathfrak{ANSWER}$

• A spiracle or stigma is the opening in the exoskeletons of insects and some more derived spiders to allow air to enter the trachea. In the respiratory system of insects, the tracheal tubes primarily deliver oxygen directly into the animals' tissues.

Answer 2

Answer:

spiracle or stigma is the opening in the exoskeletons of insects and some more derived spiders to allow air to enter the trachea. In the respiratory system of insects, the tracheal tubes primarily deliver oxygen directly into the animals' tissues.