adenosine triphosphate: a nucleotide that is the primary source of energy in all living cells because of its function in donating a phosphate group during biochemical activities; composed of adenosine, ribose, and three phosphate groups and formed by enzymatic reaction from adenosine diphosphate and an orthophosphate.TP-a nucleotide derived from adenosine that occurs in muscle tissue; the major source of energy for cellular reactions. adenosine triphosphate. nucleotide, base-a phosphoric ester of a nucleoside; the basic structural unit of nucleic acids (DNA or RNA).
The howler monkey group contains 15 different species of howler monkeys, all of which are native to the forests of Central and South America.Howler monkeys live within groups of five to fifteen individuals with usually about three males and the rest all females.ow Many: Non Threatened Howler monkeys are on the largest new world primates and are recognized as the loudest land animal in the world. Theyâve earned both this reputation and this name from the unique enlarged hyoid bone in the throats of howler monkeys, that are the keys to their characteristic âhowlingâ.
Howler monkeys are the largest among the different types of monkeys in the New World. They range in size from 56 to 92 cm, excluding their prehensile tail, which can be equally as long. Both male and female howler monkeys have trichromatic color vision â something other New World primates do not have.