Two students, Joseph and Madelyn, line up one behind the other. How many different ways can they stand in line?

2 ways

Step-by-step explanation:

One with Joseph in front and Madelyn in back.

And the other with Madelyn in front and Joseph in back.

answer: the answer is simply nothing.

step-by-step explanation: because there is no ending to this question

gimme brainliest > : 3

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.