Deficiency of which nutrient can cause muscle cramps, irregular heartbeat, or paralysis?
A) iron B) sulfur C) copper D) potassium
Answer: D
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What stage of mitosis is essentially the reverse of prophase?
A. Anaphase B. Prometaphase C. Metaphase D. Telophase E. Cytokinesis
Cilia (select all correct choices):
A. are specialized organelles found on some epithelial cells. B. are used by epithelial cells to move substances along cell surfaces. C. are used by sperm cells for motion. D. None of these choices are correct.
Which hormone prevents the endometrium from breaking down until the placenta secretes enough
hormones to maintain it? a. hGH b. FSH c. estrogen d. hCG e. ADH
One of the major functions of the skeletal system is to store long term sources of energy for the body.
Answer the following statement true (T) or false (F)