Mediterranean is the answer
decomposition of what was alive then the remains are buried by sediments which results in fossilization
Gas exchangeis the delivery of oxygen, so im guessing it takes place in the bloodstream
The answer is biomagnification. <span>Bioaccumulation</span> involves <span>the
build-up</span> of a pollutant from the environment to an organism in a food
chain. Biomagnification refers to the tendency of pollutants to concentrate as
they move from one trophic level to the next. The substances become
increasingly concentrated in tissues or internal organs as they move up the
chain.