Which transformations map the strip pattern onto itself?
a horizontal translation and a 180° rotation
a horizontal translation only
a horizontal translation and a reflection across a vertical line
O
a horizontal translation and a glide reflection

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.  

inverse operation of addition

hd extra 3-7 x d en is the answer