"Before you just dump that enzyme-active presoak into the washing machine, be sure to ____________ so it will do a better job."
A. rub it into the stained area to increase enzyme-substrate contact
B. turn up the water temperature to boiling to get the enzyme molecules moving faster
C. add chlorine bleach to the enzyme
D. dilute the enzyme with water
A. rub it into the stained area to increase enzyme-substrate contact
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Adjuvant therapy combines ____
a. surgery and MRI imaging b. high dose chemotherapy and X-rays c. radiation and high dose chemotherapy d. surgery and low dose chemotherapy e. surgery and radiation therapy
Increasing the number of stomata per unit surface area of a leaf when atmospheric carbon dioxide levels decline is most analogous to a human _____
A) breathing faster as atmospheric carbon dioxide levels increase B) putting more red blood cells into circulation when atmospheric oxygen levels decline C) breathing more slowly as atmospheric oxygen levels increase D) increasing the volume of its lungs when atmospheric carbon dioxide levels increase
Who postulated the idea that there are "living things" smaller than bacteria (that were not able to be filtered out of solution), and proposed the term "virus"?
A) Louis Pasteur B) D. Ivanovski and M. Beijerinck C) Friedrich Loeffler and Paul Frosch D) Carl Woese
When nitrate is reduced to dinitrogen gas (N2), nitrogen is removed from the ecosystem and returned to the atmosphere through a series of reactions collectively known as ________.
A. nitrogen fixation B. anammox reaction C. denitrification D. All of the choices are correct.