Joanne Mattern

Shows some of the food chains that exist in the ocean--from plant to plant-eater to various levels of predator to the top of the food chain--and how they combine into a food web.

Shows some of the food chains that exist in the polar regions--from plant to plant-eater to various levels of predator to the top of the food chain--and how they combine into a food web.

Shows some of the food chains that exist in grasslands and prairies--from plant to plant-eater to various levels of predator to the top of the food chain--and how they combine into a food web.