AP BIOLOGY

Detailed explanation-1: -What Do Organisms Compete For? Organisms compete for the resources they need to survive-air, water, food, and space.

Detailed explanation-2: -Interspecific competition occurs when members of more than one species compete for the same resource. Woodpeckers and squirrels often compete for nesting rights in the same holes and spaces in trees, while the lions and cheetahs of the African savanna compete for the same antelope and gazelle prey.

Detailed explanation-3: -Food and water Every animal needs access to food to survive. Food gives animals energy and the materials for their life processes to work. Food is so important to animals which can make the competition fierce, they often fight for it.

Detailed explanation-4: -The competitive exclusion principle says that two species can’t coexist if they occupy exactly the same niche (competing for identical resources). Two species whose niches overlap may evolve by natural selection to have more distinct niches, resulting in resource partitioning.

Detailed explanation-5: -Explanation: Organisms compete not only with Organisms of the same species but also with other Organisms of other species. There is never enough food or space to support all the organisms in a given environment. The organisms have to compete for the resources needed to survive and reproduce.