Are these fractions proportional or non proportional? 1/3
4/12
4/5
9/11
5/10
20/60
YALL PLZ HELP I SUCK AT MATH (10 POINTS) first correct one I'll mark brainliest

1/3, 4/12, 20/60 are all proportional

Step-by-step explanation:

the rest are non-proportional

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.  

alright well the answers to your question is

2xy/9 hope this have a nice day : )

step-by-step explanation: