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.
The basic approach is to come up with a basic body compartment, like cars on a train, and build up a body by adding more. It is a quick and simple way to add size, and segmented worms, also known as annelids, are the prototypes. The leeches are less segmented than the other types, although the basic body plan of the adult almost always starts with 34 segments between front and back (this is common in other segmented groups, where a set number of segments arises in embryos as the base architecture).