"we are made of stardust" refers to
a. the dust of dead skin cells we shed every day.
b. the rotating cloud of stardust that formed the planets.
c. the gases in the stars that formed the gases in the atmosphere.
d. the rotating cloud of stardust that formed luca and all the organisms that evolved later.

During a fierce storm a large number of tall trees on an island are uprooted by the wind and die. most of the trees on the island are now short trees and produce seeds that grow into short trees. what concept is shown in this example? question 5 options: natural selection artificial selection genetic engineering gene splicing