During a football game a teen lost 12 yards on the first play and then gained 5 on each of the next three plays. which method finds the total yards at the end of the first four plays?

The method that finds the total yards at the end of the first four plays is yards.

Solution:

Teen lost 12 yards on the first play, so in first play the yards goes in negative.

Next three plays each he gained 5 yards each.  Total yards he got is yards . As he gained the yards, so these yards will be positive.

So after four play the total yards will be

Hence, the method is

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.