Based on diversity, life is divided into Bacteria, Archaea, and Eukarya. These groupings are called ______.
A. protists
B. eukaryotics
C. domains
D. kingdoms
A. protists
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Which issue is not caused or transmitted by an insect?
a. schistosomiasis b. reduced lumber harvests c. significant damage to food crops d. typhus e. malaria
How does the size of a DNA fragment relate to its speed of passage through the agarose gel?
What will be an ideal response?
The pronghorn antelope of the United States and the saiga antelope of the central Asian steppes live in similar habitats and have similar adaptations. Which of the following features would you be surprised to find in a saiga antelope?
A) camouflaging coloration B) teeth adapted to grinding tough forage C) a warmly insulating winter coat D) a digestive tract without cellulose-digesting bacteria
Which of the following reagents reacts with crystal violet as the mordant?
A. safranin B. crystal violet C. Gram's iodine D. 95% ethyl alcohol