What is the basic tenet of the theory of organic evolution? What is the mechanism for organic
evolution called, and how does it work? What will be an ideal response?
All living things are related and have descended with modification from organisms that lived in the
past. The mechanism is called natural selection, which states that the organisms that are best adapted
to their environment are the most likely to survive to reproduce, causing species to evolve with time.
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The Little Ice Age (LIA) may have been caused by
A) periods of high sunspot activity. B) periods of no solar irradiance. C) Keeling curves. D) periods of low sunspot activity.
The predominate system of agriculture practiced in arctic Russia is
A) subsistence cultivation. B) intensive subsistence wet rice not dominant. C) mixed crop and livestock. D) pastoral nomadism. E) dairy
The largest size particle that a stream can carry is:
a. 8 centimeters. b. moved in suspension. c. stream discharge. d. stream capacity. e. dependent on stream velocity.
The convergence of two continental masses is known as a(n)
A. conduction. B. divergent collision. C. subduction. D. continental collision.