All living things need energy. They get this energy from food. A food chain shows how energy is passed between plants and animals. All food chains include a producer. This is something that has ...

All organisms in an ecosystem depend on each other. Food chains show the flow of energy from one organism to another. Food chains show the feeding relationships between organisms. Food webs show ...

Levels of lead and other heavy metals spiked in L.A.’s coastal waters after the January fires, raising serious concerns for ...