Category Archives: B1.4 Interdependence and adaptation

Environmental change

Changes in the environment affect the distribution of living organisms Examples might include, but are not limited to, the changing distribution of some bird species and the disappearance of pollinating insects, including bees. Environmental effects on animals and plants Such changes may be caused by living or non-living factors such as a change in a competitor, or in the average temperature or rainfall. Using living

Read more


To survive and reproduce, organisms require a supply of materials from their surroundings and from the other living organisms there. Competition by plants and animals Plants often compete with each other for light, water, space and nutrients from the soil. Animals often compete with each other for food, mates and territory. Definition of adaptation Organisms, including microorganisms, have features (adaptations) that enable them to

Read more