Darwin discovered that the same species of organisms had different traits from one island to the next. according to darwin, this happened because the organism had

An easy way to calculate the amount of energy available at each level is to what?

Some mining processes involve removal of large areas of earths surface in the mined region this practice causes severe environmental damage by allowing which natural process to accelerate in the affected areas? a.precipitation b.erosion c.migration d.condensation

This part insulates the reaction chamber from the transfer of heat to or from the surrounding environment