Populations.

Descripción

A-Level (4:1 Populations) Biology Fichas sobre Populations., creado por Elena Cade el 02/03/2016.
Elena Cade
Fichas por Elena Cade, actualizado hace más de 1 año
Elena Cade
Creado por Elena Cade hace alrededor de 8 años
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Resumen del Recurso

Pregunta Respuesta
Definition of Population: All the organisms of one particular organisms living in a particular habitat
Definition of Community: The total number of living organisms in a particular ecosystem or habitat
Definition of Habitat: The part of an ecosystem in which an organism lives
Definition of Ecosystem: A group of interrelated organisms and their physical environment
Definition of Niche: Where an organism lives and what it does there - a description of how an organism fits into its environment e.g feeding, breeding etc.
Definition of Biotic factors: The effects of the activities of living organisms on other organisms.
Definition of Abiotic factors: The non-living, physical conditions of an ecosystem.
Definition of Competition: A relationship between different organisms requiring the same resource, one organism/population can out compete another.
What is Intraspecific competition? Competition between animals of the same species.
What is Interspecific competition? Competition between members of different species.
Resources animals frequently compete for? Food, Water, Space, Breeding.
Resources plants frequently compete for? Mineral ions, Water, Light, Space.
What is the Lotka-Volterra model? Model used to understand predator-prey relationships in regards to population.
Factors effecting birth rates of humans: Contraception Medical care Political change Economic change Religion Female emancipation
Factors affecting human death rates: Conflict Natural disaster Life expectancy Disease Medical care Resources Sanitation Infant mortality
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