________ is the process by which cells become specialized
a. Differentiation
b. Cancer
c. Mutation
d. Transcription
e. Translation
a
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Endolymph is a fluid found in the:
a. Synovial cavity b. Vitreous chamber of the eye c. Internal ear d. All of these
Suppose that the osmotic response element is in a promoter joined to the coding region of luciferase,
and this composite gene is in cultured renal medulla cells. The cells should glow when they are placed in a medium that is ____ to the cells.
a. hyperosmotic b. hypoosmotic c. hypoosmotic or isoosmotic d. isotoosmotic e. hyperosmotic or isotoosmotic
The building blocks which animals need for life include
A. sugars. B. nucleotides. C. fatty acids. D. amino acids. E. All of the answer choices are correct.
Based on the temperature range and precipitation, which area in the accompanying figure is dominated by pine trees?
a. 3 b. 4 c. 5 d. 6 e. 7