Which of the following would you expect to dissolve poorly in water?
A. Anions
B. Cations
C. A substance with a lot of polar covalent bonds
D. A substance with a lot of non-polar covalent bonds
Ans: D. A substance with a lot of non-polar covalent bonds
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A tar-like patch found in the upper North Atlantic supra-intertidal usually is:
a. a lichen. b. a cyanobacteria. c. sea hair. d. a sponge. e. a seaweed.
The archaea include which of the following?
a. extreme thermophiles b. alga c. protista d. animals e. plants
Discuss the role of turgor in the crisp lettuce purchased at the grocery store looking much limper by
the time it gets home. What will be an ideal response?
What is the first step in the production of a siRNA?
A. infection with a virus B. cleavage to form a short double-stranded RNA C. design of an experimental treatment D. transcription from a nuclear gene E. export of the pre-miRNA from the nucleus