What system removes nitrogenous waste products from the blood and regulates bloo

Question

What system removes nitrogenous waste products from the blood and regulates blood pH, ion balance and water balance? A. urinary B. immune C. respiratory D. cardiovascular E. lymphatic Organize the following structural levels of the human body from simplest to most complex. (1) cell (2) tissue (3) chemical (4) organ system (5) organ A. 3, , 1, 2, 4, 5 B. 1, 2, 3, 4, 5 C. 3, 1, 2, 5, 4 D. 4, 2, 3, 1, 5 E. 2, 3, 1, 4, 5 Which of the following would lead to increased erythropoiesis? A. increased blood pressure B. increased CO_2 levels C. increased environmental O_2 levels D. increased blood pH E. increased erythropoietin levels Macrophages are cells specialized for A. phagocytosis B. support. C. absorption. D. secretion. E. carrying gases. The loss of height that occurs with aging is due to compression of the A. vertebral arches. B. pelvic girdle. C. vertebral bodies. D. vertebral foramen. E. intervertebral discs.

Explanation / Answer

53. (A) - the purpose of the urinary system is to remove nitrogenous wastes from blood, maintain the blood pH, ion balance and water balance

54. (C) - chemical - cell - tissue - organ - organ system

55. (E) - erythropoietin is a hormone secreted by kidney, and the conditons responsible for the secretion of this hormone is when the person moves to the top of the hills, mountains e.t.c

56. (A) - macrophages are specially meant for phagocytosis

57. (E) - intervertebral discs dehydrate and compresses.

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