Viruses:
a. Consist of only a single cell
b. Are smaller than cells
c. Consist of multiple cells
d. Contain a nucleus
e. Contain ribosomes
b. Are smaller than cells
You might also like to view...
Which of the following support(s) the observation that herbivores do not generally eat all of the available plants?
I) top-down control hypothesis II) poor nutrition hypothesis III) plant-defense hypothesis A) only I B) only II C) only III D) only II and III E) I, II, and III
One technique for staining bacteria for viewing under the microscope is called the Gram stain. In this technique, alcohol is used as a decolorizer because it degrades the outer membrane found in some bacteria. What chemical component of the cell does alcohol affect?
A. Nucleic acids B. Carbohydrate C. Lipid D. Protein
Which one of the following is NOT required for photosynthesis to take place?
A. enzymes B. ATP C. oxygen D. carbon dioxide
Rank the following methods of acquiring oxygen from most to least efficient.
A. fish gills ? avian lungs ? mammalian lungs B. fish gills ? mammalian lungs ? avian lungs C. avian lungs ? mammalian lungs ? fish gills D. avian lungs ? fish gills ? mammalian lungs E. mammalian lungs ? fish gills ? avian lungs