What kind of fuel supplies 80%of industrialized energy needs

Plsss > .< compare and contrast the characteristics of flatworms rounds worms and earthworms

What was darwins theory of common decent

Amarine ecologist has constructed the conceptual model shown in the diagram. what predictions can be made from using this model? where the tertiary consumers get their energy how often primary producers are able to reproduce when bacteria and fungi initiate the process of decomposition whether other secondary consumers are present