How do scientists obtain knowledge about the world?

Flock x flock y flock z total pieces of food eaten (from previous page) 147 93 60 food percentage* % % % simulated number of birds in flock for 3rd generation** * divide each flock's total pieces of food by 300, the total number of pieces of food eaten. ** multiply the food percentage for each flock by the total number of birds (30).

Explain how sequences of amino acids in proteins can be used to reveal relationships among organisms.

Why did the federal government end its support of yucca mountain as a site for long-term storage of nuclear water