Ecology is the study of the relationships between living organisms and their physicalenvironment. Ecology considers organisms at the individual, population, community, and ecosystem level.
A habitat is the place where an organismslives.
A population refers to all of the organisms of a particularspecies that live in the same habitat.
An ecosystem is the interaction of a community of livingorganisms (biotic) with the non-living (abiotic) parts of their environment.
Competition is an interaction between organisms or species in which they both try to use the same limited resources.
In ecology, what is a 'community'?
All the populations of different species that live together in a habitat
Give three resources that animals compete for.
Food
Water
Mates
Territory
Give three resources that plants compete for.
Mineral ions
Water
Light
Space
All organisms in an ecosystem depend upon one another, with countlesscomplexrelationships between them all.
What do we call this concept?
Interdependence
The diagram above shows the relationship between grass, rabbits, snakes, and hawks in a habitat.
If the population of snakes falls, what is likely to happen to the rabbit population?
Increase
The rabbit population is likely to increase as there will be lesspredation from snakes.
