AP BIOLOGY

Detailed explanation-1: -Human activity, invasive species, climate change, and environmental pressure are constant stressors on ecosystems, making resources less available and of less quality. These stressors affect the way that organisms compete with each other and their ability to survive and co-exist.

Detailed explanation-2: -Competition occurs when two species each require a resource that is in short supply, so that the availability of the resource to one species is negatively influenced by the presence of the other species.

Detailed explanation-3: -Interspecific competition may occur when individuals of two separate species share a limiting resource in the same area. If the resource cannot support both populations, then lowered fecundity, growth, or survival may result in at least one species.

Detailed explanation-4: -The last example of symbiosis we will explore on our imaginary dive is competition-the struggle among organisms for the same limited resources in an ecosystem. Competition can happen between members of the same species (intraspecific competition) and between different species (interspecific competition).

Detailed explanation-5: -Competition for limiting resources is among the most fundamental ecological interactions and has long been considered a key driver of species coexistence and biodiversity. Species’ minimum resource requirements, their R*s, are key traits that link individual physiological demands to the outcome of competition.