[Answer] Which of the following must occur for speciation to happen?

Answer: b reproductive isolation
Which of the following must occur for speciation to happen?

Rapid sympatric speciation can take place through polyploidy such as by doubling of chromosome number; the result is progeny which are immediately reproductively isolated from the parent population. New species can also be created through hybridisation …

Sat Dec 19 2020 13:30:00 GMT-0500 (Eastern Standard Time) · Speciation ultimately results due to the reproductive isolation between two populations. This can happen in a multitude of ways a common mode of which is known as allopatric speciation. The geographic mode where two species become physically isolated and unable to interbreed allows for selection to act on both populations independently. Over time this gives rise to a …

The only requirement being that speciation occurs as a result of adaptation to different ecological or micro-ecological conditions. [6] Ecological speciation can occur pre-zygotically (barriers to reproduction that occur …

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