d bc (a b c and d) r the same to make a tidepool
Speciation is not a mechanism of microevolution.
The correct answer is: post-industrial community (society).
Post-industrial community is the society in which service sector brings more wealth than the manufacturing sector of the economy. In this kind of society, knowledge is valuated and producing ideas is the main way to grow the economy of that society.
I think the answer is A hope this helps
