Net movement of particles from an area where there are many particles of the substance to an area where there are fewer

What kind of seafood would you expect to have the highest levels of mercury and why? kelp, because they use the sun to photosynthesize on the bottom trophic level. oysters, because they filter feed on plankton on a lower trophic level. small fish, because they eat plankton on a higher trophic level. sharks, because they feed on organisms on a higher trophic level.

25. what does meiosis create? haploids or diploid? somatic cells or gametes?

What substance acts to prevent sudden ph changes in bodily fluids?