Noun. 1. ATP-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).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 snowy owl (Bubo scandiacus) is a large, white owl of the typical owl family. Snowy owls are native to Arctic regions in North America and Eurasia.Younger snowy owls start with darker plumage, which turns lighter as they get older. Males are almost all white, while females have more flecks of gray plumage.his yellow-eyed, black-beaked white bird is easily recognizable. It is 52â71 cm (20â28 in) long, with a 125â150 cm (49â59 in) wingspan. Also, these owls can weigh anywhere from 1.6 to 3 kg (3.5 to 6.6 lb). It is one of the largest species of owl and, in North America, is on average the heaviest owl species.
The great horned owl (Bubo virginianus), also known as the tiger owl (originally derived from early naturalists' description as the winged tiger or tiger of the air) or the hoot owl, is a large owl native to the Americas.ther raptors may nest more closely to the great horned owl. One golden eagle nest within only 8 m (26 ft) of an owl nest and there are cases of Harris's hawk and turkey vultures even nesting the very same tree as great horned owls.