Unit 3: Ecology Vocabulary Set

Abiotic factors

nonliving (i.e. air, water, sunlight, temperature, weather, natural disasters)

Commensalism

one organism benefits, the other organism is unaffected

Mutualism

both organisms benefit from the interaction

Riparian Vegetation

a plant that grows on the sides of a river

Adaption

a certain characteristic or quality that helps the organism survive in its environment

Competition

organisms compete for resources in short supply

Natural Selection

the environment (or nature) selecting the traits that are best suited to survive

Survival of the Fittest

the traits that are best suited to the environment to survive. The most fit traits will be the ones most common to the population.

Biotic Factors

alive (i.e. humans, bacteria, animals, competition, predation, disease)

Ecology

the study of the complex relationships between an organism and biotic and abiotic factors

Parasitism

one organism benefits, the other organism is harmed, but not killed

Symbiosis

an interaction between two organisms that physically live near or on each other

Carrying Capacity

the maximum population size that an environment can sustain

Genetic Diversity

each individual of a population is not exactly identical

Predation

one organism kills and eats another organism