When a species consisting of a single large population slowly evolves over many generations into a new species, this an example of
A. synapomorphy.
B. horizontal gene transfer.
C. cladogenesis.
D. anagenesis.
E. monospeciation.
Answer: D
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Which of the following describes the property shared by elements within the same column (or group) in the periodic table of elements?
a. Elements within the same group have the same electrical charge. b. Elements within the same group have the same number of neutrons in their nuclei. c. Elements within the same group share the same electron configuration in their valence shells. d. Elements within the same group have the same atomic radius.
Which of the following is an HIV enzyme
essential for its successful replication in a host cell?
a. reverse transcriptase b. RNA polymerase c. DNA polymerase d. protease e. ligase
A typical asteroid has an orbital period around the Sun of 5.2 years. How far from the Sun is this asteroid?
a. 5.2 AU b. 10.4 AU c. 27.0 AU d. 3.0 AU e. 2.3 AU