Explain the significance of two important body minerals: sodium and calcium
What will be an ideal response?
Sodium is a major cation that is essential for normal membrane function. Calcium is a cation that is essential for normal muscle and neuron function and for normal bone structure.
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Migratory excursions can be distinguished from other types of animal movements by
A) Being relatively persistent and of long duration. B) Being primarily linear in direction. C) The animals being unresponsive to normally distracting stimuli. D) All of the above
What is a myocardial infarction?
A. The sudden death of cardiac tissue B. A bundle branch block C. An enlarged left ventricle D. A mitral valve prolapse E. A total heart block
Metastasis means:
A) beyond control B) spreading from the original site C) benign D) A and B E) all of the above
With increasing age,
A) the number of functional nephrons increases. B) the sensitivity to ADH and aldosterone increases. C) the total body water content increases. D) instances of kidney problems increase. E) the body mineral content increases due to the deterioration of bone.