Si Juan mide 1.85 mts. y proyecta una 1 punto sombra de.30 mts. y al mismo
tiempo su mejor amigo que es Daniel
proyecta una sombra de .26 mts.
¿Que altura tiene Daniel? *

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.  

add -60 to 120 which will result in : 2x+3y=180

then subtract 2x: 3y=-2x+180

lastly, divide by 2: y= -2/3x+60

hope this is the answer you're looking for: )