Which type of microscope shows cells against a white background?
A. Confocal
B. Electron
C. Fluorescence
D. Bright-field
E. Phase-contrast
Answer: D
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Human MN blood types illustrate the Hardy Weinberg principle because these blood type antigens are
not subject to inheritance. ______________ Indicate whether the statement is true or false.
Which of the following is a defining characteristic of comparative morphology?
a. It compares the anatomical structures of organisms. b. It compares the similarities of organisms. c. It compares the differences of organisms. d. It compares the similarities and differences of organisms.
An experiment involves the inoculation bacteria onto a variety of media with NaCl concentrations ranging from 1% to 25%. Which of these media is most likely to be isotonic with the bacterial cells?
1% NaCl 5% NaCl 10% NaCl 25% NaCl
The science of reconstructing the evolutionary history of life is called
A) gradualism. B) taxidermy. C) biology. D) systematics. E) pre-adaptation.