he line graph shows the growth of a plant over time. A line graph titled Height of a Plant has number of weeks on the x-axis and height (inches) on the y-axis. At 1 week the height is 2, at 2 weeks the height is 5, at 3 weeks the height is 8, at 4 weeks the height is 12, at 5 weeks the height is 16, at 6 weeks the height is 19. How many inches did the height of the plant increase between weeks 3 and 4? 2 4 8 12

i dont know it

step-by-step explanation:

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.  

the first one is x^2+2x+2

the second one is x^2+4

the last one is x^2-4x+8