Unit 2 Biodiversity Quiz

What is genetic diversity?

• The diversity of species in an ecosystem

• The balance of distribution of individuals between species

• The variance of genes or traits within individuals of a population

• The variety of ecosystems found in a given area

What is the difference between species richness and species evenness?

• Richness refers to the balance of distribution of individuals between species, while evenness refers to the number of different species found in an ecosystem

• Richness refers to the number of different species found in an ecosystem, while evenness refers to the balance of distribution of individuals between species

• Richness refers to the variety of ecosystems found in a given area, while evenness refers to the variance of genes or traits within individuals of a population

• Richness refers to the variance of genes or traits within individuals of a population, while evenness refers to the variety of ecosystems found in a given area

What are provisioning services?

• Recreation or intellectual benefits from nature

• The stabilizing of conditions like climate or water quality

• Things provided to humans from nature that have value

• Processes done by ecosystems that support valuable human actions

What accounts for the rule that islands closer to the mainland have higher species richness?

• More species are able to migrate to islands that are closer to the mainland as it's easier to fly or swim a shorter distance

• Larger islands have higher ecosystem diversity, providing more food and habitat resources for a larger number of different species

• Islands provide a narrower range of food and habitat resources than mainland ecosystems, leading to conditions that select for a more narrow or specialized set of traits in the species on the island

• Islands generally have a higher percentage of specialist species

Why do islands generally have a higher percentage of specialist species?

• More species are able to migrate to islands that are closer to the mainland as it's easier to fly or swim a shorter distance

• Larger islands have higher ecosystem diversity, providing more food and habitat resources for a larger number of different species

• Islands provide a narrower range of food and habitat resources than mainland ecosystems, leading to conditions that select for a more narrow or specialized set of traits in the species on the island

• Islands generally have a higher percentage of specialist species

What are regulating services?

• Recreation or intellectual benefits from nature

• The stabilizing of conditions like climate or water quality

• Processes done by ecosystems that support valuable human actions

• Things provided to humans from nature that have value

What is the role of keystone species in an ecosystem?

• They have no specific role

• They are the most abundant species

• They play a crucial role in maintaining the structure of an ecological community

• They are the largest species

What is the impact of invasive species on biodiversity?

• They increase biodiversity by adding new species

• They have no impact on biodiversity

• They decrease biodiversity by outcompeting native species

• They help in the growth of native species

What is the significance of genetic diversity within a species?

• It increases the species' ability to adapt to environmental changes

• It has no significance

• It decreases the species' ability to adapt to environmental changes

• It increases competition within the species

How does the size of an island affect its biodiversity?

• Larger islands have higher biodiversity due to more available habitats

• Smaller islands have higher biodiversity due to less competition

• The size of an island does not affect its biodiversity

• Smaller islands have higher biodiversity due to more available habitats