Which of the following phenomena produces magnification?
A) the wavelength of a radiation source
B) the refraction of radiation as it passes through a lens
C) the thickness of a microscopic specimen
D) the numerical aperture of a lens
E) the length of an objective lens
B
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Why do you think four sperm cells are produced as a result of gametogenesis but only one ovum is produced?
What will be an ideal response?
Over hundreds of millions of years, high pressure and temperature transformed ____ into deposits of oil and natural gas.
A. coal B. land animal remains C. land plant remains D. plankton remains E. sedimentary rock
The viral envelope is derived from the host ____________
a. periplasmic space b. plasma membrane c. peptidoglycan structure d. cellulose
Why was it such a brilliant strategy for Darwin to open On the Origin of Species with a discussion of artificial selection?
What will be an ideal response?