The mordant for the endospore stain is the _________ process.
Fill in the blank(s) with the appropriate word(s).
Heating
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Which of the following can affect enzyme
activity?
a. temperature change b. pH change c. changes in salt concentrations d. regulatory molecules e. all of these
What happens at higher altitudes?
a. The concentration of oxygen decreases.
b. The concentration of carbon dioxide increases. c. The partial pressure of oxygen decreases. d. The partial pressure of carbon dioxide increases. e. There is no change in the concentration or partial pressures of atmospheric gases.
Water covers about ______ percent of the Earth's surface.
A. 33 B. 40 C. 50 D. 70 E. 80
Ribosomes are found free within the cytoplasm as well as bound to rough endoplasmic reticulum. They are the sites of
A) photosynthesis. B) digestion. C) protein synthesis. D) energy production.