The ribosomal RNA studies that led to the division of prokaryotic organisms into the Bacteria and the Archaea were begun by ________.
A. Pasteur
B. Watson
C. Woese
D. Needham
Answer: C
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In the heart of a reptile or amphibian, where would you expect to find oxygenated blood? Select all correct choices
A. in the right atrium B. in the left atrium C. mixed with de-oxygenated blood in a common ventricle D. mixed with de-oxygenated blood in the right ventricle E. Nowhere; oxygenated blood does not travel through the heart of these animals.
________ indirectly link the extracellular matrix and the cytoskeleton of animal cells.
Fill in the blank(s) with the appropriate word(s).
The primary action in hand washing that prevents the distribution or transmission of microor-ganisms is:
a. the amount of soap used. b. the temperature of the water. c. the mechanical action of rubbing. d. the chemical activities in the soap.
Answer the following questions true (T) or false (F)
1. Only eukaryotic cells depend on ATP. 2. Given enough time, sucrose can spontaneously break down into fructose and glucose in a glass of water. 3. Enzymes themselves are altered in the process of catalyzing chemical transformations.