Water plays an important role in the chemical weathering of rock. in 3–5 sentences, identify and explain two agents of chemical weathering to support that statement.

Select the true statements about eubacteria. most live as decomposers and heterotrophs. most only thrive in a narrow range of environments. certain eubacteria are responsible for food poisoning. eubacteria thrive in extreme environments.

Which organelle breaks down sugar molecules that supply energy to the cell ?

Vessels draining the myocardium of the heart, open primarily ,into which chamber?