What is the pattern component of the theory of chemical evolution?
A) Heat and electrical discharges were required for chemical evolution to occur.
B) Most chemical evolution occurred at black smokers.
C) The process occurred at black smokers, in the atmosphere and oceans, or in outer space.
D) Increasingly complex carbon-containing molecules formed early in Earth history.
Answer: D
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The physical place where members of a population typically live is termed a
A. symbiont. B. niche. C. habitat. D. community. E. competitive zone.
What type of molecule can rapidly cross a plasma membrane?
a. large, polar molecules. b. small, polar molecules. c. large, hydrophilic molecules. d. small, hydrophilic molecules. e. small, hydrophobic molecules.
carbon fixation
What will be an ideal response?
A student is conducting a field study by observing an ectotherm. Which of the following animals might the student be observing?
a) mouse b) salamander c) pigeon d) rabbit