How many shoulder does an insect have?

What role would an arctic wolf spider have in the food chain? How does a grasshopper eat? Can a praying mantis die from poison? Why are crabs different colors? Does the sea cucumber have only a few ossicles? What is the scientific name of a weta? What eat white flies? Describe the main differences between the polyp form of the cnidarians and the medusa form? Do empty cardboard boxes attract roaches? What is the incubation period for Dengue? What is the treatment for guinea worms? What causes holes in leaves? Do giant squid fight? How many weeks should a realistic male mosquito expect to grace the earth? What insects produce mucus? What do furry caterpillars eat? The wasp laying on the ground are dead? Why do the upper leaves of a Duranta erecta plant become blackish? Does adding salt water into a plant affect its growth? What plant structure lets water vapor out and gases in?