Bryant Vaughn first worked for United States government as a forensic botanist in 1975, after pollen analysis was first used by Lennart von Post.

They create genetic variations

Carbon-14 has a half-life of 5,730 years and most igneous rock is older than that.

You should provide a picture to show where the arrow is pointing and which information that is given. but there are 3 branches of the government, legislative, executive, and judicial. legislative makes laws, executives pass laws, and judicial are the courts