Which of the following Organ systems eliminates nitrogenous wastes.
A) Urinary system
B) Respiratory system
C) Endocrine system
D) Lymphatic system
E) Reproductive system
Answer: A) Urinary system
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Erectile dysfunction is defined as an inability to achieve or maintain
A) an erection. B) an emission. C) ejaculation. D) a normal sperm count. E) blood flow.
B lymphocytes develop immunocompetence in the ________
A) bone marrow B) lymph nodes C) thymus D) spleen
GFR will decrease in which of the following conditions?
A. dilation of the afferent arteriole B. decrease in renal nerve activity C. decrease in plasma oncotic pressure D. increase in hydrostatic pressure in Bowman's space E. increase in renal blood flow
Which one of the following best describes the order of a somatic reflex?
A. Somatic receptor ? efferent nerve fiber ? afferent nerve fiber ? interneuron ? skeletal muscle B. Somatic receptor ? efferent nerve fiber ? interneuron ? afferent nerve fiber ? skeletal muscle C. Somatic receptor ? afferent nerve fiber ? interneuron ? efferent nerve fiber ? smooth muscle D. Somatic receptor ? afferent nerve fiber ? interneuron ? efferent nerve fiber ? skeletal muscle E. Somatic receptor ? interneuron ? afferent nerve fiber ? efferent nerve fiber ? skeletal muscle