Natural selection can be defined as ________.
A. a process in which organisms with certain inherited traits are more likely to survive and reproduce than individuals with other traits
B. the production of more offspring than can survive in a given environment
C. the evolution of a population of organisms
D. a process in which changes in gene frequencies result from evolution
A. a process in which organisms with certain inherited traits are more likely to survive and reproduce than individuals with other traits
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All three domains (Bacteria, Archaea, and Eukarya) follow the same genetic code. Therefore, which of the following statements would most likely be correct?
A) The genetic code evolved three times. B) The genetic code evolved before DNA replaced RNA as the unit of genetic information. C) There were no mutations following the evolution of the genetic code. D) The genetic code evolved before the different domains diverged.
Two intermediates of the sterol biosynthesis pathway, isopentenyl diphosphate and dimethylallyl diphosphate, are used by archaea in the biosynthesis of ________.
A. isoprenoids B. hormones C. diacylglycerol D. nucleotides
The proposal that one type of organism can change gradually into another type over a long period of time is known as:
A. preconception. B. preservation. C. natural history. D. evolution.
The ____ of an atom have no charge.
A. electrons B. protons C. neutrons D. ions E. nuclei