a certain chemical, the ratio of zinc to copper is 4 to 17 . A jar of the chemical contains 731 grams of copper. How many grams of zinc does it contain?.

zinc=172

hope that helps

Step-by-step explanation:

4/17= z/731

17×z=4×731

17×z=2,924

divide 17 on both sides

z=172

the line of

the answer is; biodiversity resulting from few ancestors

adaptive radiation occurs when a population is subjected to a large natural environment with spatial ecological variations. the parts of the population in the different ecologies begin to adapt to their local environments. due to non-random mating across the large populations, this causes the different populations from the large population to speciate within their local environments. they, therefore, diverge to different species sharing a common ancestor.