Chapter 5 Lesson Two: Interaction Among Living Things

Food Chain The path of the energy in food from one organism to another

Food Web The overlapping food chains in an ecosystem

Herbivore An animal that eats plants, algae, and other producers

Carnivore An animal that eats another animal

Predator An animal that hunts other animals for food

Prey A living thing that is hunted for food

Scavenger A meat-eating animal that feeds on the remains of dead animals

Omnivore An animal that eats both plants and animals

Symbiosis A relationship between two kinds of organisms that lasts over time

Mutualism A relationship between two kinds of organisms that benefits both

Parasitism When one organism lives in or on another organism and harms it

Commensalism A relationship that benefits one without harming or helping the other

Food Chain The energy comes from the Sun and then flows from producers to consumers to decomposers

Food Chain a. Energy from the sun b. Grass (Producer) c. Grasshopper (Consumer) d. Horned Lizard (Consumer) e. Snake (Consumer) f. Red-Tailed Hawk (Consumer) g. Soil Bacteria (Decomposer)

Food Web Producers: Grasses and trees

Food Web Consumers: Cannot make their own food a. Herbivores: Plants b. Carnivores: Meat

Energy Pyramid Less and less food and energy are available as you go from the base to the top of the pyramid.