Scientists discovered a new species of freshwater fish that lives in a pond with a very low o2 level. when they measured the oxygen extraction efficiency of the fish, it was twice as high as that of closely-related fresh water fish. answer the following questions. 1. propose a hypothesis to explain how the fish achieve a high o2 extraction efficiency

it's c.us forest service

igneous rocks are formed by solidification of cooled magma (molten rock), with or without crystallization, either below the surface as intrusive (plutonic) rocks or on the surface as extrusive (volcanic) rocks.  

the composition depends on the source magma. there are almost a thousand types of composition found till now.  

hope this

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