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Infants normally are able to sit, stand and walk within the first _______ of development.

Match the hominin description to the correct species. 

Match the archaeological site to the important discovery. 

The Rovee-Collier (1987) study in which infants kicked to try to move a mobile even when they were no longer attached to the mobile by a ribbon indicates that

During the Last Glacial Maximum

The new dad is very concerned.  “Sammy has lost 5 ounces since he was born a week ago!  I think we need to give him some bottles of formula in addition to the breast milk.”  This dad is

Which of the following behaviors make humans unique among primates? 

Jonathan and his father are at the circus.  A clown jumps in front of the couple and Jonathan looks to his father to see if he is afraid or laughing.  Jonathan is using

Organogensis is the

During the Late Pleistocene humans migrated into North America by