Fermentation occurs if ________.
Fill in the blank(s) with the appropriate word(s).
Ans: oxygen is not present
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What type of diseases require biosafety level (BSL) 4 procedures and facilities when working with samples that may be infected?
A) highly infectious diseases B) diseases with high mortality C) diseases for which no treatment or vaccine exist D) highly infectious diseases with high mortality for which no treatment or vaccine exist
Why would exercise immediately help blood circulation in your legs?
A. As muscles contract, they squeeze blood through the veins and increased heart rate pushes more blood into the legs. B. Increased heart rate pushes more blood into the legs. C. As muscles contract, they squeeze blood through the veins. D. Exercise increases the amount of red blood cells. E. Exercise increases the amount of red blood cells and increased heart rate pushes more blood into the legs.
Melanin protects the skin from
a. desiccation. b. abrasion. c. ultraviolet radiation. d. infrared damage. e. invasion by bacteria.
Briefly discuss five ways to decrease one’s risk of developing cancer.. What will be an ideal response?