Why is there more producers than consumers in an ecosystem?

How does an angiosperm prevent self pollination

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

Drag each tile to the correct location. match each trait that an organism displays to a reproductive strategy.