Interactions

Adapting to the Environment

• A. Every organism has adaptations that are well suited to its living conditions

Adapting to the Environment

• B. Niche= An organism’s role in it’s habitat• A niche would include how and when it

reproduces, how it moves, how it gets it’s food, and more

Three types of Interactions

• Competition• Predation• Symbiosis

Competition

• Struggle between organism over limited resources

• If two organisms occupy the same niche, they will compete and only one will survive.

Predation

• One organism hunts and kills another for food• Predator- lion• Prey- zebra

• Predators have adaptations the help them catch and kill their prey. The lion’s sharp claws and teeth.

Predation

• Some predators have adaptations that enable them to hunt at night.

• Fox Bat

• Owl

Predation

• Prey also have adaptations to avoid being caught.

• Camouflage• Warning coloring• Protective covering• Mimicry• False coloring

Symbiosis

• Close relationship between two organisms where at least one benefits.

• Mutualism• Commensalism• Parasitism

Mutualism

• Both benefit

• Example: Bats (get food)and cactus (new plants)

Commensalism

• One benefits & the other is not helped or harmed

• Example: cactus and hawks (get a home)

Parasitism

• One benefits One harmed

• Example: tick (gets food) dog (harmed)Tick is a parasite Dog is the host