The Living World: Biodiversity

The number of individuals within a single species in an ecosystem.

The variety of life in a particular habitat or ecosystem.

The total biomass of all living organisms in an ecosystem.

The rate at which energy flows through an ecosystem.

Ecosystem A has higher species richness and higher species evenness.

Ecosystem A has higher species richness but lower species evenness.

Ecosystem B has higher species richness and higher species evenness.

Ecosystem B has lower species richness but lower species evenness.

Forest A is likely more resilient to environmental stressors than Forest B.

Forest B has fewer species and less even distribution of individuals than Forest A.

Forest A has a simpler trophic structure and is less resistant to invasive species than Forest B.

Forest B is likely more resilient to environmental stressors than Forest A.

The variety of genes within a single species.

The total number of different species in an ecosystem.

The relative abundance of each species in an ecosystem.

The interactions between different species in an ecosystem.

The total number of species in an ecosystem.

The genetic diversity within a species.

The relative abundance of each species in an ecosystem.

The physical traits that result from genes.

The number of different species in an ecosystem.

The variety of genes within a species.

The physical appearance of an organism.

The interactions between different species.

Alleles are the physical expressions of genes and do not affect genetic diversity.

More alleles within a population indicate lower genetic diversity.

Alleles are different versions of a gene, and more alleles mean more genetic diversity.

Alleles determine the number of species in an ecosystem.

Climate regulation

Water purification

Wood for fuel

Pollination

Regulating services provide tangible resources, while cultural services are non-material benefits.

Regulating services are non-material benefits, while cultural services provide tangible resources.

Regulating services maintain environmental stability, while cultural services provide recreational or spiritual benefits.

Regulating services provide recreational benefits, while cultural services maintain environmental stability.

Increased crop yields due to reduced competition for resources.

No significant impact, as other pollinators will quickly fill the niche.

Decreased crop yields and potential economic hardship due to reduced pollination.

Improved water quality due to the absence of the pollinator species.