Heat and chemical treatments can straighten curly hair. which functional group is responsible for this property of hair proteins? a.)phosphate group. b.)sulfhydryl group. c.) carbonyl group

You are working in the lab and are working with the same element but with varying isotopes of the element. you are working with c-11, c-13, c-14, and c-15. what is the average atomic mass of this element? (use periodic table) a- 12 b-15 c-14 d-13

The same agricultural practices are used in every country of the world. select the best answer from the choices provided t f

Adaptive radiations can be a direct consequence of four of the following five factors. selectthe exception. a) vacant ecological niches b) genetic drift c) colonization of an isolated region that contains suitable habitat and few competitor species d) evolutionary innovation e) an adaptive radiation in a group of organisms (such as plants) that another group uses as food