What is extinction an example of?
a. mendelian genetics
b. natural selection
c. macroevolutionary change
d. microevolutionary change
Answer: c. macroevolutionary change
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If DNA replication rejoined the two parental strands, it would be termed:a
dispersive. b. gradient. c. semiconservative. d. parental. e. conservative.
Assume that in a series of experiments, plants with round seeds were crossed with plants with wrinkled seeds and the following offspring were obtained: 220 round and 180 wrinkled
(a) What is the most probable genotype of each parent? (b) What genotypic and phenotypic ratios are expected? (c) Based on the information provided in part (b), what are the expected (theoretical) numbers of progeny (400 total) of each phenotypic class?
Adiabatic cooling takes place when ____
a. latitudinal differences alter rainfall amounts b. reversals of wind direction occur seasonally c. a decrease in air temperature occurs without loss of heat energy d. an increase in air temperature occurs without loss of heat energy e. anytime air loses heat energy
The process of lowering the activation energy of a chemical reaction is called ________.
Fill in the blank(s) with the appropriate word(s).