Biology B4 (5)
- Created by: aleena147
- Created on: 29-12-19 15:50
Ecosystems
ecosystems are organised into diff levels
individual= a single organism
population= all the organisms of one species in a habitat
community= all the organisms different species living in a hbitat
ecosystem= a community of organisms along with all the non-living conditions
organisms compete for resources to survive
plants need light, space water and minerals from the soil
animals need space food water and mates
organisms compete with other species for the same resources e.g red and grey squirreles both eat the same food, competition with the grey squirrels fo rthese resources means theres not enough food for the reds so the population of red squirrels is decreasing
Environmental changes affect communities in dif ways
the environment in which plants and animals live chnages al the time, these chnages are caused by abiotic and…
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