Someone plzz zgive me evidence why i picked student b plz

The cretaceous period spanned the time interval between and 65 million years ago. 250 million 144 million 75 million 200 million

Identify two examples of chemical reactions that you have encountered during the last week. identify an exothermic and endothermic reaction. explain.

Can a trait be both polygenic and have multiple alleles? explain why or why not.