The two major hazards involved in the handling and storing materials are bulkiness and Weight of materials. The handling of heavy and bulky materials may cause back pain and spinal injuries. The persons who lift such bulky or heavy materials may suffer from the acute and chronic back pains.
Answer: Option B) is toxic to red blood cells.
Explanation:
Partial hydrolysis of lecithin by lecithinases (enzyme in black widow spiders and snakes venom) causes the removal of only one fatty acid to yield lysolecithins, which when subjected to the bloodstream by sting as a result of spider bite causes the rupture of red blood cells.
Thus, the mechanism is that it is toxic to red blood cells.
Answer:
a. Agua, Glucosa y Urea
Explanation:
La orina es el producto final del trabajo del tracto urinario (producto de la función renal durante el proceso de filtración de la sangre). La orina elimina todos los productos del metabolismo solubles en agua del cuerpo: urea, ácido úrico, creatinina, sulfatos, fosfatos, electrolitos, sustancias tóxicas, fármacos y agentes de contraste.
La composición normal de la orina consiste en: agua (95%) y compuestos orgánicos.
