My paleontology college professor has a huge collection of fossils. <span />
the first and last statement concerning dna and rna is corrrect
Kidneys to ureters to bladder. Yes.
Primary succession is when, for example, a volcano explodes and there is nothing left and even the soil is ruined. It would take at least a hundred years for the land to be like it was before the volcano erupted. Secondary succession is when, for example, a wild fire happens but the soil is not ruined. It would take at least 25-50 years for the land to be like it was before the fire.