What effect does an existing soil presence have on the seral stages of secondary succession and the time it takes to return to the climax community compared to primary succession

Which set of characteristics best describes sedimentary rock? a) largest type of rock, made of organic matter, hardest type of rock b) often contains layers, forms near sources of water, contains fossils c) least abundant type of rock, made of other rocks, made mostly of minerals d) most abundant type in earth's crust, made of magma/lava, contains no fossils

How do living things obtain phosphorus

What does it mean for an allele to be dominant?