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.
The black howler monkey is the loudest land animal in the world! If you come upon a troop of black howler monkeys in a zoo or in the wild, you might think you are looking at two different species.But donât be fooled! The males and females are sexually dimorphic, meaning they have different physical characteristics.lack howler monkeys are specially designed for making loud whooping noises. The hyoid bone in their throat is modified and forms a bony box called a corniculum. The corniculum is an egg-shaped pouch that acts as an amplifying chamber, enabling these monkeys to out-howl all other land animals.