Biological evolution according to Darwin and Wallace states that
a. organisms produce numerous offspring, but environmental factors limit the number of
reproducing survivors.
b. heritable variations allow some individuals to outcompete others.
c. the offspring of successful individuals inherit the favorable characteristics of their parents.
d. a and b
e. a, b, and c
E
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The principle of ______________ favors the hypothesis that requires the fewest assumptions.
Fill in the blank(s) with the appropriate word(s).
Which of the following is responsible for transporting water and solutes in gymnosperms?
a. tracheids b. phloem c. stroboli d. sporophytes
Using the analogy of a 12-hour geologic time
clock a. prokaryotes appear shortly after 5 a.m. b. eukaryotes appear at 9 a.m. c. dinosaurs appear at 10 a.m. d. early fishes appear at 11 a.m. e. the first humans appear at 11:59 a.m.
Approximately _______ percent to ________ percent of processed foods in supermarkets are
genetically modified. Fill in the blank(s) with the appropriate word(s).