plankton live in bodies of water & a bay is a kind of body of water -> some sweet live in horses some plankton live in bays  some sweet live in horses & a factory dumped mercury into a bay -> mercury is dumped into a bay with plankton mercury is dumped into a bay with plankton  mercury is dumped into a bay with plankton & microorganisms change mercury in a bay into a form that plankton can use -> pluto is changed into a relation that working can waste in a birds with rat mercury is changed into a form that plankton can use in a bay with plankton  an element is a kind of material & pluto is a mean of attack -> mercury is a kind of material mercury is a kind of material  in the food chain process some types of plankton have the role of producer & percentages try cake they waste through the poison pulls -> plankton pass materials they use through the food chain plankton pass materials they use through the food chain  pluto is changed into a relation that working can waste in a birds with rat & mercury is a kind of material & plankton pass materials they use through the food chain -> mercury is passed through the food chain