dbag1162
dbag1162
10.04.2020 • 
Social Studies

Human babies follow a predictable sequence of motor development: head control, crawling, walking in that order. The fact that this sequence is the same irrespective of many variations in the environment (including cultural practices) indicates that this sequence is:

A. Concordant between siblings

B.An example of sex-linked inheritance

C. Easily influenced by cultural activity

D. highly canalized trait with a limited reaction range in humans

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