Biodiversity and Ecosystem Dynamics

What is genetic diversity?

• The variety of species in an ecosystem

• The genetic variation among individuals in a population

• The number of ecosystems in a region

• The diversity of habitats in an area

What is genetic diversity?

• The variety of genes among individuals of a species.

• The number of species in a region.

• The variety of ecosystems within a region.

• The variety of habitats in an ecosystem.

What is the relationship between habitat diversity and species diversity?

• More habitats support fewer species.

• More habitats support more species.

• Fewer habitats support more species.

• Habitat diversity does not affect species diversity.

Why is having a diverse suite of habitats important?

• It helps maintain a high diversity of species

• It reduces the number of predators

• It increases pollution levels

• It creates uniformity in species

What is the significance of species evenness in an ecosystem?

• It shows the total number of species

• It reflects the balance of species populations

• It indicates the genetic diversity

• It measures the physical size of species

Which statement best explains the biodiversity of these communities?

• Community 1 has the highest biodiversity because it has the highest species richness.

• Community 1 has the same biodiversity as Community 2.

• Community 2 has the highest biodiversity because it has the highest number of individuals.

• Community 1 has the highest biodiversity because it has the highest species evenness.

Which statement best describes an environmental problem that can result from the loss of habitat diversity?

• Generalist species will be lost more quickly than specialist species.

• Specialist and generalist species are likely to be similarly impacted.

• Specialist species will be lost more quickly than generalist species.

• Neither specialist nor generalist species are likely to be impacted.

Which of the following best explains how ecosystems would be affected by an increase in species richness?

• An increase in species richness would decrease the stability in an ecosystem because the chance of a species being lost during a disruption would increase.

• An ecosystem with increased species richness would be less likely to recover from disruptions because with more species, there is a greater chance that many of them will be lost.

• An increase in species richness would increase the stability in an ecosystem because it enhances resilience to disruptions.

• An ecosystem with increased species richness would be more likely to collapse due to competition among species.