Add to Table of Contents: Population Study P. 4 Population Vocab #1 P. 5

WHAT FACTORS INFLUENCE POPULATION GROWTH?

Abiotic – nonliving parts of an organism’s environment Abiotic – nonliving parts of an organism’s environment. Biotic- the living organisms that inhabit an environment.

Carrying Capacity – the number of organisms of 1 species that an environment can support.

Competition – the relationship between organisms that need the same resources.

Exponential growth –a population grows faster as it increases in size.

Limiting Factors – any factor that restricts the survival, reproduction or distribution of organisms.

Logistic growth - growth rate decreases as the population reaches carrying capacity.

Overpopulation - when a population of a species exceeds the carrying capacity of its environment.

Population – a group of organisms of the same species that interbreed and live in the same place.

Scale – levels of organization between organisms within the biosphere. Biosphere(biggest)-> Environments -> Communities -> Populations -> Species(smallest)

Organism-> Population-> Community-> Ecosystem->

Help for test: Ecosystem – all the organisms in a certain place and their physical environment Community – a group of interacting populations of different species