Which system does the hypothalamus belong to?
A. the endocrine system
B. the reproductive system
C. both the nervous and the endocrine systems
D. the cardiovascular system
E. the nervous system
Answer: C
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A species that faces extinction in all or part of its range is:
a. endangered b. threatened c. rare d. endemic e. exotic
Choose the TRUE statement about dialysis.
a. Toxins are actively removed from the blood by the dialysis machine. b. Potassium levels in the dialysis tubing should be similar to the normal regulated blood potassium level. c. Creatinine levels in the dialysis tubing should be similar to the normal regulated blood creatinine level. d. Dialysis treatment should eliminate an anemia caused by renal damage.
Which of the following is characteristic of the circulatory system of arthropods?
A) lack of a heart B) lack of blood C) lack of blood vessels D) lack of distinction between blood and interstitial fluid
Without the ________, the semen would not naturally be able to counteract the acidity of the vagina
A) glans penis B) interstitial cells C) seminal vesicles D) prostate