An organism that obtains its energy from sunlight is a (an)
a. autotroph.
b. auxotroph.
c. heterotroph.
d. chemotroph.
e. phototroph.
E
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One way in which small viruses package more information into a very small genome is to use overlapping genes so that the same base sequence is read in more than one reading frame.
Answer the following statement true (T) or false (F)
The Nearctic realm is designated by
a. A. b. B. c. C. d. D. e. E.
Some athletes use "blood doping," in which additional red blood cells are added to the blood prior to the competition. What is the effect of blood doping?
A) It decreases blood pressure. B) It changes the blood type. C) It increases oxygen delivery to muscles. D) It makes blood thinner so that it flows faster.
Icosahedral viruses are constructed from ring- or knob-shaped units called ________.
Fill in the blank(s) with the appropriate word(s).