Why was the development of bipedalism a major advancement in human evolution?
What will be an ideal response?
Bipedalism
allowed the hands to be freed for purposes other than locomotion. As hands evolved, tool
use also could develop.
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The hormone erythropoietin is released in the lungs.
Answer the following statement true (T) or false (F)
____________________ matter consists predominantly of densely packaged cell bodies and dendrites, whereas ____________________ matter consists of bundles of myelinated nerve fibers
Fill in the blank(s) with correct word
Protein digestion begins in the stomach under the influence of pepsin; it continues in the duodenal lumen under the influence of pancreatic proteolytic enzymes; and it is completed intracellularly in the small intestinal brush border
Indicate whether the statement is true or false
Defense mechanisms that respond at the same speed and efficiency upon repeated exposure are classified as ______ immunity and defense mechanisms that increase in speed and strength upon repeated exposure are classified as ______ immunity
A. innate; non-specific B. adaptive; innate C. specific; innate D. innate; adaptive