What type of mountain glaciers are large unconfined sheets of ice found only in a few
high-mountain areas today?
A. highland icefields
B. alpine glaciers
C. valley glaciers
D. sheet glaciers
E. continental ice sheets
A
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What will be an ideal response?
Contrast index fossil and fossil assemblage
What will be an ideal response?
According to plate tectonic theory, the San Andreas fault is a transform boundary that separates the North American plate from the ________.
A. Australian plate B. Caribbean plate C. Eurasian plate D. Cocos plate E. Pacific plate
Darwin and Wallace discovered natural selection without knowledge of an important field of biology that is very much a part of biological evolution
What essential part of biological evolution was poorly understood when they first presented natural selection to the world? A) Geology B) Genetics and DNA C) Anatomy D) Physiology and embryology