Why do roundworms molt?

What sponges have a skeleton? Could your dog catch fleas from a badger? How do humans get bot flies? Can getting ant poisin on you be harmful? Do pincher bugs have venom? What are the tagmata of arachnids? What type of insect makes an indentation in dry dirt? What do polyphemus caterpillars eat? What are spiracles on a catepillar? Are stink bugs aphids? How do you get over fear of bees? What are the big black bugs with large wings that look like huge bee's and are flying in your garden by the hundreds? Which creature has a head thorax and abdomen? How long after using ammonia will the fleas die? How do dust mites move? How do you get rid of grub worms in your lawn without harming the environment? How many babies can a jewel spider? Do ticks grow a new body? What are hydra form blocks? Can water go off?