Ecology (LC 2026) (Leaving Cert Biology): Flashcards

Study of interactions between living things & their environment

Place where a plant or animal lives

All members of same species living in an area

All different populations in an area

Functional role organism plays in ecosystem or habitat

2+ organisms struggle for resource in short supply

Active physical struggle; produces one winner & one loser

Struggle for limited resource; resource shared by all

Catching, killing & eating another organism for food

Energy is lost at each stage

No natural predators

Organisms capable of interbreeding & producing fertile offspring

Competition between different species

Symbiosis where both organisms benefit

Organisms that make their own food using simple molecules