Which is a biotic factor that affects population size quizlet?

Which is a biotic factor that affects population size?

One biotic factor that affects the size of a population in an ecosystem is the number and type of predators in that ecosystem.

Which of these is a biotic factor that affects population size quizlet?

The biotic and abiotic factors that limit population size are space, food, shelter, water, climate, competitive exclusion, and temperature.

What is a biotic factor that can affect the population size of animal populations?

Biotic factors that a population needs include food availability. Abiotic factors may include space, water, and climate. The carrying capacity of an environment is reached when the number of births equal the number of deaths. A limiting factor determines the carrying capacity for a species.

Which of the following factors affect population size?

Population growth rate is affected by birth rates, death rates, immigration, and emigration. If a population is given unlimited amounts of food, moisture, and oxygen, and other environmental factors, it will show exponential growth.

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How biotic factors affect abiotic factors?

A biotic factor is a living thing that has an impact on another population of living things or on the environment. Abiotic factors do the same thing, but they are non-living. … To survive, biotic factors need abiotic factors. In turn, biotic factors can limit the kinds and amounts of biotic factors in an ecosystem.

What are 5 biotic factors examples?

5 Answers. Examples of biotic factors include any animals, plants, trees, grass, bacteria, moss, or molds that you might find in an ecosystem.

What factors affect population size quizlet?

Terms in this set (6)

  • death rate. mortality; number of deaths within a population per unit of time.
  • birthrate. natality; number increases at which reproduction increases population (birth/unit of time)
  • Immigration. …
  • emigration. …
  • Four rates used to calculate population change. …
  • growthrate.

Which of the following is an abiotic factor that could influence population size?

What are some important abiotic factors? Space, water, and climate all help determine a species population.

How is the population size regulated by biotic and abiotic factors?

Abiotically, population size can be regulated through natural disasters like floods, tornadoes, etc or things that affect climate like rain and temperature. Biotically, population size can be regulated by food and/or natural predators.

What factors affect populations within an ecosystem?

Carrying capacity, or the maximum number of individuals that an environment can sustain over time without destroying or degrading the environment, is determined by a few key factors: food availability, water, and space.

How can biotic factors affect the population dynamics?

Biotic factors within a community can affect the populations of organisms but are also essential to the balance of life within the ecosystem. … Competition for food is an example of a biotic factor in an ecosystem. A red squirrel and a grey squirrel living in the same habitat will compete for the same food source.

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What are the biotic factors that affect the distribution of species?

Biotic factors such as predation, disease, and inter- and intra-specific competition for resources such as food, water, and mates can also affect how a species is distributed.

What are the 6 factors that affect population size?

Factors influencing population growth

  • Economic development. …
  • Education. …
  • Quality of children. …
  • Welfare payments/State pensions. …
  • Social and cultural factors. …
  • Availability of family planning. …
  • Female labour market participation. …
  • Death rates – Level of medical provision.

What are the 4 factors of population?

The four factors that determine population size are birth rate, death rate, emigration, and immigration.

What are the 3 factors of population growth?

Three primary factors account for population change, or how much a population is increasing or decreasing. These factors are birth rate, death rate, and migration.