The resolution of a microscope can be improved by changing the
A) condenser.
B) fine adjustment.
C) wavelength of light.
D) diaphragm.
E) coarse adjustment.
C
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Which of the following is a concern over
genetically modified organisms?
a. viral infections b. tissue rejections c. animal suffering d. gene escape e. all of these are concerns over genetically modified organisms
Which structure associated with the human heart contains oxygen-rich blood?
a. right atrium b. right ventricle c. pulmonary artery d. aorta e. superior vena cava
Climate change (global warming) is directly related to
A. the amount of carbon dioxide in the atmosphere. B. humans eating protein. C. the loss of carbon dioxide from the oceans. D. the size of the human population.
You sprain your ankle at a roller derby practice. How would you treat your injury?
A) Use ice only because it will reduce swelling and increase blood flow to aid healing. B) Just leave it alone. Ice and heat both make the injury worse. C) First use ice to reduce swelling, and then use heat much later to aid healing. D) First use heat to aid healing, and use ice later to reduce swelling.