Train A and Train B, weigh a total of 550 tons. Train A is heavier than Train B. The difference of their weights is 372 tons, What is the weight of each train?

A:372 B:178 (I think this is what you were asking :/...

Step-by-step explanation:

A+B=550

A>B

550-372=178

A:372 B:178

Train A weighs 372 tons, while train B weighs 178 tons.

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.  

-22

times both sides by 2, times () by 8, add alile terms, move terms, add alike and caculate divide both sides by 3