Answer:
Secondary Succession.
Explanation:
In Yellowstone, secondary succession was seen following forest fires in 1988. The fires destroyed a large portion of the biological life present in the areas affected by the flames. However, the area was not left completely annihilated. Life survived and redeveloped.
B. It's less dense. Ice floats<span> because it is about 9% less dense than liquid water.</span>
In the early stages the embryos of four different species will look the same .For example, fish embryos and human embryos both have gill slits. In fish they develop into gills, but in humans they disappear before birth. That what makes them different.
