Biodiversity, Ecosystems, and Resilience

During a class discussion, Alex and Salyse were talking about the role of native species like the Florida Panther in Florida's ecosystems. What effect do these native species have on the population of herbivores?

• Increase the number of herbivores

• Control and reduce the population of herbivores

• Have no impact on herbivore populations

• Cause herbivores to migrate to other areas

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Amelia and Joel are studying the impact of the Burmese Python on the populations of small mammals in the Everglades. What have they observed?

• Increased the diversity of small mammals

• Decreased the populations of small mammals

• Had no effect on small mammal populations

• Helped small mammals thrive

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During a class discussion, Hailey and Louden learned about the impact of pollution and habitat destruction on the population of indicator species like the American Alligator. How does this environmental change affect their population?

• Increases their numbers

• Stabilizes their population

• Leads to a decline in their numbers

• Causes them to migrate to different habitats

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Amelia and Mark are studying the impact of the Burmese Python in the Florida ecosystem. How do the effects of invasive species like the Burmese Python differ from those of native species in this ecosystem?

• Invasive species improve ecosystems, while native species harm them

• Invasive species disrupt ecosystems, while native species maintain balance

• Both have similar effects on ecosystems

• Native species cause more disruption than invasive species

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Amelia and Malique are studying how speciation and extinction interact to shape biological diversity. What conclusion might they reach?

• Speciation decreases biological diversity

• Extinction prevents new species from forming

• Speciation and extinction both contribute to the balance of ecosystems

• Extinction always leads to a decrease in diversity

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Why is genetic variability important to the health of populations and preventing extinction? Consider a scenario where Cayden and Khalila are studying a population of animals in a rapidly changing environment.

• It ensures that all individuals are identical

• It reduces the chances of disease spreading

• It allows populations to adapt to changing environments

• It limits the potential for evolution

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During a class discussion, Salyse and Hailey explored what factors contribute to extinction, and how these factors impact biological diversity. What did they conclude?

• Overpopulation increases diversity

• Habitat destruction decreases diversity

• Disease outbreaks increase genetic diversity

• Climate stability leads to more extinctions

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During a biology class, Hailey and Amelia were discussing the concept of biodiversity. Which of the following best describes biodiversity?

• The variety of ecosystems in a given area

• The variety of species and genetic differences within a population

• The number of individuals in a population

• The rate of extinction of species

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Khalila and Carl are comparing two gardens. Garden "B" shows more biodiversity than garden "A". Why?

• Because "B" shows more species that are different than garden "A"

• Because garden "B" has less different species than "A"

• "A" has a greater number of same species plants so this statement is wrong.

• Both gardens show the same biodiversity

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During a biology field trip, Mark and Khalila learned about a species whose presence or absence can indicate the health of an ecosystem. What is this type of species called?

• A species whose absence indicates the ecosystem is becoming unhealthy

• A species whose absence usually cause an ecosystem to collapse

• A species that normally thrives in the ecosystem

• A species that has been introduced to an ecosystem, but does not normally live there