What is economic importance of dragonfly?

Can you get rid of mites or bed bugs in papers and VHS tapes? What are bramble leaves? What kind of habitat do rolly pollies live in? How do bacteria and sea sponge reproduce? Is an earth worm a vertebrate? Is a mouse a consumer producer or decomposers? What is the caterpillar that is bright green and spiky with a red and white stripe down its side found in Kentucky? What worm is known as the cross-eyed worm? What is the name of the habitats of clonies of antsbeesand termites? What is a compound word for ant? How do you spy on an ant? Do earthworms swim? Why is it good for a bee take pollen from a plant? Do bees pollinate one flower and then return to previous flower to pollinate? What are mullusks? Why are honey bees on my live oak acorns? What do snail look like? What do emperor dragonflies eat? Fur loving pest? How big are baby planktons?