Which of the following is the best example of a genetic polymorphism?
a. ABO blood groups
b. sickle-cell anemia
c. trisomy-3
d. straight hair
a
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Fossils of the first hominids are found in
What will be an ideal response?
The male gorilla reaches sexual maturity around what age?
a. 6-9 b. 11-13 c. 10-11 d. 15-16 e. 16-18
Three important characteristics of the human body that make speech possible are a lower larynx, a longer pharynx, and a more flexible tongue
Indicate whether the statement is true or false
The reduction or loss of cranial crests in hominin species represents __________
a. a need for greater room for muscles associated with chewing b. a de-emphasis on protection for the cranial case c. a de-emphasis on chewing as well as a greater emphasis on brain size expansion d. a reduction in the size of neck muscles associated with quadrupedalism