Carbon monoxide is not heavier than air. A carbon monoxide alarm should be installed in a location where the alarm will stay clean, and out of the way of children or pets. Refer to the user's manual for specific installation requirements. Â« Back To FAQs List.
A leech is an annelid or segmented worm related to earthworms. Most are aquatic although there are land leeches in the tropics. Some leeches are blood sucking parasites bu â¦ t others are predators.
We begin with the polychaetes (btistle worms). Polychaetes, like the earthworms are segmented (annelid) worms. Earthworms, leeches and some freshwater worms belong to a group called the oligochaetes, since they have only a few spines (chaetae) per segment.he tentacles of some Terebellids may extend for a metre or more in length. Left: a computer model of a polychaete based on Eunice aphroditois, the bobbit worm. These worms eat algae, crustaceans and other worms. These worms frequently reach 2 to 3 metres in length, but 6 metre giants have been reported.