You asked: Which is a biotic factor that affects the size of a population in a specific ecosystem group of answer choices?

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

What are the biotic factors affecting population?

What are the biotic factors affecting population? Biotic factors refer to the living or once-living organisms in an ecosystem and their impacts such as predation, competition, food supply, human impacts and parasites. Environmental factors such as rainfall, climate, predators, shelter and food availability can change.

What are the biotic factors affecting ecosystem?

The biotic factors in an ecosystem are the living organisms, such as animals. Biotic factors in an ecosystem are the participants in the food web, and they rely on each other for survival. A list of biotic factors includes those organisms that are producers, consumers and decomposers.

How do abiotic or biotic factors affect a population size?

The carrying capacity depends on biotic and abiotic factors. If these factors improve, the carrying capacity increases. … If resources are being used faster than they are being replenished, then the species has exceeded its carrying capacity. If this occurs, the population will then decrease in size.

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What are examples of biotic and abiotic factors that affect population size?

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.

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.

How biotic factors affect the distribution of organisms?

Biotic factors

They can also influence the distribution of organisms in an ecosystem. grazing – too little leads to dominant plants outcompeting other species, too much reduces species numbers overall. Both decrease biodiversity. predation – a reduction in predators can lead to an increase in prey.

Which of the following factors are biotic?

Complete answer: The biotic factors include the living organisms like plants, animals, humans, microorganisms, worms etc.

What is abiotic factor that affects population size?

Environmental factors. Environmental factors that influence populations are divided into two categories – abiotic and biotic factors. Abiotic factors refer to the non-living physical and chemical elements found in an ecosystem such as rainfall, temperature, pH, sunlight, shelter and day length.

Which of the following factors affects the 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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What factors affect population size ecology?

Many factors influence the size of a population. Food, water, shelter, predation, and density are all things that can allow a population to grow or cause it to decline.

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 are the 3 types of biotic factors?

Biotic factors have been divided into three main categories, which define their distinctive role in the ecosystem:

  • Producers (Autotrophs)
  • Consumers (heterotrophs)
  • Decomposers (detritivores)

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.