What kind of chemical change involves breaking down substances using electricity ?

What protects the lining of the stomach from acidic gastric juices?

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.

Explain how ancient whale fossils found in eqypt are believed to support the theory of evolution.