Which microscope is the most widely used to show stained cells against a bright background?
A) Fluorescence
B) Phase-contrast
C) Bright-field
D) Electron
E) Dark-field
C) Bright-field
You might also like to view...
RNA acts at both the genetic and the functional levels
Indicate whether the statement is true or false.
________ microbiology involves the use of microorganisms to make products such as antibiotics, vaccines, steroids, alcohols, vitamins, amino acids, and enzymes.
Fill in the blank(s) with the appropriate word(s).
Biogeochemical cycles should be regarded
A) primarily within a terrestrial ecosystem. B) primarily within an oceanic ecosystem. C) primarily linking terrestrial and oceanic ecosystems. D) with a global perspective.
The respiratory control center is located
A) in the pulmonary veins. B) in the pulmonary arteries. C) in the medulla oblongata. D) in the right lung. E) throughout the arteries.