D it can be turned on & off.
The 'cheek' is the common name for the insect GENA.
The gena is located in the head area of insects. The gena forms the sclerotized area on each side of the head, below the compound eyes, which extends to the gular structure. The gena varies among species of insects.
Their gametes would have half the number of chromsomes, so 24.
Answer:
They use equations to predict future weather.
They collect data from weather stations.
They draw weather maps. ✨