Which of the following sentences about insects are correct?
A. Most insects breathe through spiracles and tracheae as they do not have lungs.
B. Most insects breathe through skin as they do not have lungs for respiration.
C. The blood of an insect is not red in colour because an insect does not have haemoglobin.
D. The body tissues of an insect contribute respiration by taking in oxygen and giving of carbon dioxide.

Options

A. A and C
B. B and C
C. B and D
D. C and D

Answer

A