What is the similirity between cockroach and grasshopper?

Well the grasshopper, bee and beetle are all alike one because obviously they are all animals which are insects and two because they are all insects that have chewing mouth parts. So mosquitoes, moths, butterflies, flies and so on are insects that have sucking mouth parts, where as the ants, bees, wasps, beetles, weevils, grasshoppers, crickets and so on eat by biting and chewing not sucking.