N5 biology life on earth flashcards
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18 Terms
Community
All of the organisms (plants & animals) living in the same ecosystem/ habitat
Species
Organisms that can interbreed to produce fertile offspring
Eco system
An ecosystem consists of all the organisms (the community) living in a particular habitat and the non-living (abiotic) components with which the organisms interact.
A niche
The role an organism plays in the community
What type of competition is more intense
Intra specific
Two resources animals compete for
Food & mates
Name two biotic factors
Grazing & disease
Name two abiotic factors
Light intensity & temperature
Equipment price to measure light
Light meter
Equipment used to measure plants
Quadrat
Equipment used to measure moisture
Moisture meter
What is a habitat
The place where an organism lives
What is a carnivore
An animal that only eats other animals
What is prey
An organism that predators kill for food
What is an indicator species
Indicator species are species that by their presence or absence indicate environmental
quality/levels of pollution
An ecosystem consists of abiotic factors plus a
community and its habitat
In an ecosystem, a niche is defined as the
role an organism plays within a community
When does competition occur
Competition in ecosystems occurs when resources are in short supply.