Is great pond snail a decomposer?

Is the lake in Oklahoma really covered with a octopus? Are octopuses vertebrates? Is a tiger an invertebrate or invertebrate? What do rolly pollies turn into? In what insect order is a grasshopper? What phylum is flies in? Do deer eat cantaloupe rind? How big is a mighty flea yoyo? Can I use Dish detergent to kill insects on plants? How does a nudibranch eat? Who wrote the poem a flea and a fly in a flue.? How can you tell a black widow spider is not an insect? Crustaceans have how many leg? Once inside this bone you look around and find yourself examining the stalagmite- and stalactite-like structures that surround you Although you feel as if you are in an underground cavern you know? What are true worms? Are ants positive phototaxis or negative phototaxis? What do you feed a roly poly? Why do yellow jackets sting people? What is mutualism in organisms? Identity of black six legged beetle with very long antena?

Is great pond snail a decomposer?