Biology Flashcards
Ecology
The study of how living things interact with their environment and each other.
Habitats
The place where an organism lives in its habitat.
Population
A population is a group of organisms of the same species living in the same habitat.
Community
A community is all of the different populations that live in a habitat.
Ecosystem
An ecosystem is all the communities interacting with each other, and with their environment.
Balance of nature
The number and types of species in an ecosystem reaches a steady state over time.
Biome
A biome is an ecosystem that extends over a very large area.
Biosphere
A biosphere is all of the Earths ecosystems together form one large ecosystem.
Abiotic
Non-living, such as the temperature and type of land.
Biotic
Living, the types of organisms that live there and how they affect each other.
Competition
The struggle between organisms for things that are in short supply, such as food, space, oxygen, water, light and mates.
Predation
Controls the number of organisms in an ecosystem.
Predator
A predator is an organism that hunts and kills another animal as a source of food.
Prey
The organism being hunted.
Symbiosis
A relationship between organisms of different species where at least one benefits.
