Mackenzie performed a chemistry experiment in which she divided 1/2 of a box of baking soda evenly among 4 bottles. She then added vinegar and water to each bottle to make them bubble up like volcanoes. How much baking soda did she put in each bottle? Write your answer as a fraction or as a whole or mixed number. please help hurry!
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step-by-step :

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.  

answer: x=3 and y=4

step-by-step explanation:

jml angle lkj & angle mj = lm