In coastal areas, wind moves sand, blowing away or engulfing the soil, and eventually creating sand dunes:

What have we learned from fossil evidence about evolution? a) it is an abrupt change. b)the process is observable. c) it takes place during one lifetime only. d)the most complex traits are always selected.

The production of cells during mitosis into specialized function is recombination or differentiation

What are they five steps of cloning?