June 2017 QP Paper 1 Flashcards
1
Q
What are the small openings in insects called?
A
Spiracles
2
Q
What kind of circulatory system do insects have?
A
Open with the heart pumping a blood like liquid to the surrounding organs.
3
Q
Where are the main sites of gas exchange in insects?
A
Trachae which extend to trachioles, branching off into the muscle tissues.
