The amount of biological or living diversity per unit area. It includes the concepts of species diversity, habitat diversity and genetic diversity.

the pattern of spacing among individuals within the boundaries of the population

part of Earth in which life exists including land, water, and air or atmosphere

predation, competition, symbiosis

A biological community of interacting organisms and their physical environment.

movement of individuals out of an area

the series of processes by which carbon compounds are interconverted in the environment, chiefly involving the incorporation of carbon dioxide into living tissue by photosynthesis and its return to the atmosphere through respiration, the decay of dead organisms, and the burning of fossil fuels.

hairs, spines, thorns, minerals, toughness

a position or role taken by a particular kind of organism within its community. Such a position may be occupied by different organisms in different localities

vascular tissue that carries water upward from the roots to every part of a plant

processes that that move nutrients back and forth between the biotic and abiotic environment

The movement of phosphorus atoms from rocks through the biosphere and hydrosphere and back to rocks. → Migration

a group of living organisms consisting of similar individuals capable of exchanging genes or interbreeding. → Community

An animal that hunts other animals for food → Predator

the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. → Photosythesis

C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O Formular for → Photosythesis