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.
Earthworms are big segmented worms that belong to the Phylum Annelida, Class Clitellata, and sub class Oligochaeta. Leeches are also worms belonging to the same Phylum and class, but sub class Hirudinae and are of three types, freshwater, terrestrial and marine.The similarities and differences between earthworms and leeches are outlined below.eeches are also worms belonging to the same Phylum and class, but sub class Hirudinae and are of three types, freshwater, terrestrial and marine. The similarities and differences between earthworms and leeches are outlined below.