The Origins of Birds, Feathers, and Flight Feathered Dinosaurs and the Origin of Birds Class Aves: ~9700 extant species; exhibit feathers and wings; keratinized.
EXCRETORY SYSTEMS
Metabolism of purine nucleotides A- De Novo synthesis: of AMP and GMP Sources of the atoms in purine ring: N1: derived from NH2 group of aspartate C2 and.
Nephrolithiasis Karen Estrella-Ramadan 07/06/12. The classic adult presentation of sudden, debilitating flank pain is uncommon in children. 50%: abdominal,
Gout and Bursitis
Reptiles and Birds
