Photo by: fox17. Organic halogen compounds are a large class of natural and synthetic chemicals that contain one or more halogens (fluorine, chlorine, bromine, or iodine) combined with carbon and other elements. The simplest organochlorine compound is chloromethane, also called methyl chloride (CH 3 Cl).
Although ticks are commonly thought of as insects, they are actually arachnids like scorpions, spiders and mites. All members of this group have four pairs of legs as adults and have no antennae.Adult insects have three pairs of legs and one pair of antennae.here are two groups of ticks, sometimes called the hard ticks and soft ticks. Hard ticks, like the common dog tick, have a hard shield just behind the mouthparts (sometimes incorrectly called the head); unfed hard ticks are shaped like a flat seed.
Certain kinds of insects are called true bugs.. True bugs include aphids, water bugs, stink bugs, and plant bugs (like box elder bugs and cabbage bugs). True bugs have mouth parts that are used to suck (like a straw) and have outer wings that are usually slightly harder than the wings underneath.nsects' three body parts are a head, a thorax, and an abdomen. Most insects have one pair of wings, but some have two pairs (four wings total). Their legs and wings are all attached to the middle body segment-the thorax. Insects breathe through tiny holes along the sides of their bodies called spiracles.