S 1 : Of the various kinds of insect defences that of the North American fungus - eating beetle is quite unusual. P: Both ants as well as mammals such as deer mice feed on this beetle. Q: This little beetle is able to recognise the kind of predator coming towards it and accordingly adopts a suitable defence. R: When facing a deer mouse, the beetle secretes an irritant from certain glands in its abdomen. S: While the beetle simply rolls itself into a compact ball in the face of an ant attack, it copes with the deer mouse differently. S 6 : The beetle's chemical secretion keeps the deer mouse at bay. The Proper sequence should be: