Copy the words that apply to you: one-celled organism, mammal, paleozoic era, opposable thumbs, cenozoic era, land-dweller, reptile, primate, binocular vision, hominid, homo habilis.

I believe it would be mammal, opposable thumbs, Cenozoic era, land-dweller, primate, and hominid

by using  production possibilities graph.  opportunity costs are key expenses in financial matters and are utilized as a part of registering money saving advantage investigation of a venture. such expenses, be that as it may, are not recorded in the record books but rather are perceived in basic leadership by processing the money costs and their subsequent benefit or misfortune.

i believe your answer is mountains.