How is an exoskeleton not beneficial?

Why are honey bees on my live oak acorns? What is flower gardening? Life cycle of a cinnabar moth caterpillar and what do they eat? How many moths are there in half of year? What kinds of bugs grow in the fabric? What are eiconosoids? Who lays the eggs on a leaf The female or male butterfly? Is a tundra a major autotrophs or heterotrophs and why? Why are there no king bees? How long does it take for yellow jackets to build an in ground nest? What adaptations does a dahlia flower have? Is a June bug just like caterpillar? How do proteins play an important role in the mating Japanese beetles? What is the difference between a cockroach and butterfly? How do parasites help their hosts? Can termites damage sheetrock? What kind of squid live in the Atlantic Ocean? What does a homerus swallowtail catepillar eat? Are mayfly nymphs poisonous? Where is the Krawl Nest on Ziba in Spectrobes?