What's 1 + 1. first one to answer gets definately not scam or steal personal information

2

Step-by-step explanation:

2 is the second number 1 is the first so 2 1s make 2

squares, rhombus, rectangles

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.