In some cases, a population of one species disperses throughout an area, and over time, one species evolves and becomes more. in this example, one bird species, the founder species, becomes three. this is true for the galapagos finches and the hawaiian honeycreeper. which answer best explains how natural selection contributes to this speciation event?

A

Explanation:i chose B and got it wrong

usa test prep

from my research i have to the conclusion that decomposers, such as fungi, bacteria and invertebrates, play a critical role in nutrient cycling and without them the earth's ecosystem may not support life as we know it. elements such as carbon, nitrogen and phosphorus exist in limited amounts on earth, although huge amounts of carbon are being released into the atmosphere from underground sources now by humans. it is still extremely important that other nutrients be retained by the process of re-use. decomposers are organisms that are able to chemically break down dead material and make these elements available for use by other organisms. without this breakdown of dead material, dead bodies would pile up. so decomposers also play a role in clean up also. without them, life might not continue as we know it and dead material would overwhelm the earth.    

nucleus

would be most reasonable answer tbh