The effects of allometric growth on head morphology in the human and chimpanzee
A. The human and chimp fetal skull are exactly the same, the human jaw development slows down after adulthood.
B. Heterochrony is occurring, the chimp jaws continue to develop at a faster rate than human jaws.
C. Paedomorphosis is occurring, the human jaw retains its small size while the chimp jaw continues to grow even in adulthood.
D. The nasal passages of the chimp are shortened due to reduced growth during fetal development while the nasal passages of the human grow through adulthood.
E. All of the choices are correct.
B. Heterochrony is occurring, the chimp jaws continue to develop at a faster rate than human jaws.
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