The movement of water across a membrane in response to a gradient of solute concentration is called:
a. salinity.
b. osmosis.
c. solubility.
d. diffusion.
e. pressure.
B
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The term herbaceous implies that a plant
A. is only found in wet environments. B. has not developed a secondary vascular tissue. C. probably will live several years. D. has no apical meristem. E. lacks vascular tissue.
Which of the following is most accurate regarding cells?
1.All cells have a nucleus. 2.All cells divide by meiosis. 3.All living organisms are made up of one or more cells. 4.Cells arise through spontaneous generation. 5.Growth is solely the result of cell division.
What is the adaptive value of natural antibiotic production for fungi?
A) Bacteria use fungi for food. B) Bacteria spoil the food that the fungi need for their own nutrition. C) Bacteria are the main competitors with fungi for food. D) Bacteria inhibit the reproduction of fungi.
An opportunistic pathogen frequently seen in AIDS patients, ________ spreads rapidly to various organs.
A. Mycobacterium tuberculosis
B. Mycobacterium avium-intracellulare
C.
| Mycobacterium leprae |
D. Mycobacterium bovis
E. Mycobacterium ulcerans