Biology AIR Test Review - Div. & Interdep. of Life

Front

What is a population in ecology?

Back

A population is all the individuals of the same species that live in a specific area at the same time.

Front

What is a community in ecology?

Back

A community is made up of all the populations of different species that live and interact in a particular area.

Front

What is an ecosystem?

Back

An ecosystem includes all the living organisms in a particular area, along with the non-living components of their environment, interacting as a system.

Front

What is a biosphere?

Back

The biosphere is the global sum of all ecosystems, representing the zone of life on Earth.

Front

What is a density-independent limiting factor?

Back

A density-independent limiting factor is a factor that affects population size regardless of the population's density, such as natural disasters.

Front

What is a density-dependent limiting factor?

Back

A density-dependent limiting factor is a factor that affects population size in relation to the population's density, such as competition for resources.

Front

What makes a species invasive?

Back

A species is considered invasive when it moves to a new ecosystem and takes resources from native species, often disrupting the local ecosystem.

Front

What is immigration in terms of population growth?

Back

Immigration is the movement of individuals into a population, which can contribute to population growth.

Front

What is emigration in terms of population dynamics?

Back

Emigration is the movement of individuals out of a population, which can lead to a decrease in population size.

Front

What is the role of birth in population growth?

Back

Birth increases the number of individuals in a population, contributing to its growth.