Concerning the Earth's water supply, which statement is correct?
a. Approximately 70% of the Earth's water is saltwater and undrinkable.
b. Worldwide, millions of people lack access to safe drinking water.
c. About 95% of the Earth's freshwater comes from surface water.
d. Nearly 5% of the Earth's water is freshwater.
B
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Exercise intolerance often results from exercising:
A characteristic of the human eye that enables the cornea to be transplanted with a 90% success rate is that _____. (Select all that apply.)
a. antigen-presenting cells in the eye do not express the co-stimulatory molecule B7 b. the cornea is not vascularized c. anterior-chamber-associated immune deviation (ACAID) establishes a state of tolerance in the eye d. only regulatory T cells express the adhesion molecules necessary to enter the cornea e. the aqueous humor of the anterior chamber contains TGF-?, which downregulates CD40 and inhibits IL-12 secretion.
The process by which all of the formed elements in the blood are produced is known as ________
Fill in the blank(s) with correct word
Which term describes an excessive sensitivity to stimuli?
A) ?causalgia B) ?hyperesthesia C) ?paresthesia D) ?peripheral neuropathy