The hydrophobic tails of a phospholipid bilayer are oriented toward the
A) cytoplasm of the cell.
B) extracellular fluid surrounding the cell.
C) interior of the plasma membrane (i.e., toward one another).
D) both the extracellular fluid and cytoplasm.
E) interstitial fluid.
C
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Which sense do whales rely on for their primary means of communication?
a. Hearing b. Sight c. Taste d. Touch e. Smelling
Which of the following differs between intra- and interspecific interactions when it comes to the evolution and maintenance of cooperation?
a. Interacting partners from different species are not linked by inclusive fitness. b. We cannot apply game theory to interspecific systems. c. Cooperative interactions cannot shift into antagonistic ones in intraspecific systems. d. All of the above.
New nuclei form during anaphase portion of cell division
a. true b. false
Water has an important stabilizing effect on temperature in living organisms and their environments
because as water absorbs heat, much of the energy is used to ____ instead of raising the temperature.
a. create hydrogen bonds b. create covalent bonds c. break surface tension d. break hydrogen bonds e. create hydration layers