Which of the following mammals were domesticated about 2000 years ago and are currently herded by native people of northern asia?

a - arctic wolf

b - reindeer

c - bighorn sheep

d - dall sheep

The gene that causes sickle-cell disease is present in a higher percentage of residents of sub-saharan africa than among those of african descent living in the united states. even though this gene causes sickle-cell disease, it also provides some protection from malaria, a serious disease that is widespread in sub-saharan africa but absent in the united states. discuss an evolutionary process that could account for the different percentages of the sickle-cell gene among residents of the two regions.

This is so important ugh its 25 points

What is the process of pulling apart an n2 molecule nevermind i got it