Top. A horizontal asymptote is a y-value which a function approaches. The asymptote is parallel to x axis, so is of the form y = a, for all real values of a. Thus if f(x) = y is a function, then y = a, becomes undefined for the function, then the line y = a, is called the asymptote for the function y = f(x).
The African armyworm (Spodoptera exempta) also called okalombo, kommandowurm, or nutgrass armyworm, is an African moth. It is a very deleterious pest, capable of destroying entire crops in a matter of weeks.
PHYLUM ANNELIDA (segmented worms) The name âAnnelidaâ means âlittle ringâ, which refers to the segments that make up their bodies. As in molluscs, a fluid-filled body cavity, the coelom , is present. Earthworms, leeches, and an. assortment of segmented marine worms belong to this phylum.