Which environmental change would cause the
greatest reduction in the biodiversity of a large
ecosystem?
(1) building a new home
(2) building a new store in a shopping mall
(3) widespread use of pesticides
(4) widespread recycling programs

i'm gonna put a couple so you can chose from

explanation:

if you know the fur color of the offspring mice, you can use the ratios to identify the genotypes of the parents.

if either parent mouse passes a dominant allele, the offspring will have black fur.

if the parental mice has two different fur color (i.e white and black) , the color of the offspring's fur would be either black, white, or the combination of both (grey)

hope this : )

there are so many examples for that in different areas, like biology experiment carried out in our lab recently.

here's one link: