CHAPTER 3 CWEB OF LIFE How do living

CHAPTER 3 CWEB OF LIFE How do living things interact?

PRODUCERS AND CONSUMERS

PRODUCERS • Autotrophs • Make their own food • Examples:

CONSUMERS • Heterotrophs • Get energy by eating organisms • Examples:

FOOD PYRAMID PT 1 • Herbivores • Consumers that eat only producers • Examples: • Carnivores • Consumers that eat only other consumers • Examples: • Omnivores • Eat both producers and other consumers • Examples:

FOOD PYRAMID PT 1 • Predator • Prey • Limited amount of prey but lots of predators • Competition • Organisms trying to use the same resource • Examples:

FOOD PYRAMID PT 2 • Detritus Feeders • Feed on dead plants, wood, other animal’s waste • Examples: • Decomposers • Organisms that break down nutrients • Examples:

FOOD PYRAMID PT 3 • Ecological Pyramid • Each level is a trophic level

FOOD PYRAMID PT 4 • Food chain • Linking one organism to the next (that consumes it) in a sequence • Food web • TONS of food chains that overlap and link up

SYMBIOSIS • Symbiosis- interaction of animals within a habitat • 5 types: • • • Parasitism Mutualism Commensalism Neutralism Amensalism

PARASITISM • Depend on their host (larger animal they are attached to) for food, weakening, and sometimes even killing, them over time • Examples:

MUTUALISM • When 2 organisms help each other • Examples:

COMMENSALISM • Organism 1 gets a benefit from organism 2, but organism 2 isn’t helped or harmed • Examples:

NEUTRALISM • Neither organism affects the other • Examples:

AMENSALISM • One organism doesn’t care while completely destroying another • Examples: