Which organism's ancestors diverged first?

The organism labelled 2 diverged first.

The correct answer is option b.

Explanation:

The arrows in the diagram indicates the timeline. The branching point shows the event of divergence in a species.

From the diagram the divergence or internal node is shown at point C.

At point C, 2 and 3 are the new species. C is the recent ancestor of the species 2 and 3.

The ancestors of organism 2 diverged first because the timeline is also short in case of species 2.

the C internode or recent ancestor diverged in to 2 different species 2 and 3.

they both go up but then go back down. they both end lower than they started. lastly, they both are competitive/the second on.

explanation:

golgi body just took the test on edge