Ecology question 1

Identify biotic and abiotic characteristics in an ecosystem.


Biotic factors: 


Interactions between the living organisms in the ecosystem. 


1) Predator-prey relationship : A living organism eats another living organism for energy. Period of interaction is very short. E.g. The lion hunts down a deer for food.


2) Parasitism : One organism benefits but another organism is harmed. Period of interaction is longer. E.g. Fleas live on the skin of dogs to suck their blood.


3) Commensalism : One organism benefits and the other organism is not harmed. Period of interaction is longer. E.g. Remora fish gets free transport from a shark by attaching to it and feed on the food scraps. Sharks are not harmed.


4) Mutualism : Both organisms benefit. Period of interaction is longer. E.g. Pollination of flowering plants.   


Abiotic factors:


1) Light : 
2) Temperature :
3) Air :
4) Water :
5) PH level :
6) Soil: