Biodiversity and Evolution Quiz

Priya, David, and Rohan went on a field trip to a nature reserve. They observed various species, their genetic material, the ecosystems they lived in, and the ecosystem processes. Based on their observations, how would they define biodiversity?

• The variety of Earth's species, the genetic material they contain, the ecosystems in which they live, and ecosystem processes

• The variety of genes found in a population or in a species

• The variety of processes that occur within ecosystems, such as energy flow and matter cycling

• The variety of species present in an ecosystem and their abundance within that ecosystem

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David, Mia, and Zoe are studying biology and they come across the term 'genetic diversity'. How would you explain genetic diversity to them?

• It's the variety of Earth's species, the genetic material they contain, the ecosystems in which they live, and ecosystem processes

• It's the variety of genes found in a population or in a species

• It's the variety of processes that occur within ecosystems, such as energy flow and matter cycling

• It's the variety of species present in an ecosystem and their abundance within that ecosystem

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Arjun, Michael, and Hannah went on a field trip to a nature reserve. They observed various species, genetic materials, ecosystems, and ecosystem processes. They also noticed the variety of biological communities. Based on their observations, how would they define ecosystem diversity?

• The variety of Earth's species, the genetic material they contain, the ecosystems in which they live, and ecosystem processes

• The variety of genes found in a population or in a species

• The variety of processes that occur within ecosystems, such as energy flow and matter cycling

• The variety of biological communities in Earth

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Michael, Maya, and Kai are studying different types of diversity in their biology class. They come across the term 'functional diversity'. How would they understand it?

• The variety of Earth's species, the genetic material they contain, the ecosystems in which they live, and ecosystem processes

• The variety of genes found in a population or in a species

• The variety of processes that occur within ecosystems, such as energy flow and matter cycling

• The variety of roles organisms play in their communities and the impact these roles have on the overall ecosystem

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Emma, Samuel, and Ava are discussing the importance of biodiversity in a park near their school. Emma suggests a theory, which she calls the 'insurance hypothesis'. According to her, what does this hypothesis mean?

• Biodiversity ensures ecosystems against a decline in their functioning

• Biodiversity is vital to maintaining natural capital

• Biodiversity is the variety of Earth's species, the genetic material they contain, the ecosystems in which they live, and ecosystem processes

• Biodiversity is the variety of processes that occur within ecosystems, such as energy flow and matter cycling

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Aria, Ethan, and Anika are studying about ecosystems and they came across the term 'keystone species'. They learned that keystone species play a crucial role in ecosystems. What is this role?

• They affect the type and abundance of other species in an ecosystem

• They serve as biological smoke alarms

• They keep their ecosystems functioning and help maintain healthy distributions of other species

• They provide raw materials for resources such as food, medicine, building materials, fuel

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During a biology class, Ava, Jackson, and Henry were discussing the theory of evolution. According to their discussion, what is the theory of evolution?

• The variety of Earth's species, the genetic material they contain, the ecosystems in which they live, and ecosystem processes

• The process by which species genetically change over time

• The variety of processes that occur within ecosystems, such as energy flow and matter cycling

• The variety of species present in an ecosystem and their abundance within that ecosystem

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Benjamin, Abigail, and Grace are studying biology. They come across the term 'genetic variability'. Abigail thinks it's the variety of Earth's species, the genetic material they contain, the ecosystems in which they live, and ecosystem processes. Benjamin believes it's the variety of genes found in a population or in a species. Grace thinks it's the variety of processes that occur within ecosystems, such as energy flow and matter cycling. However, their teacher explains that it's the variety of genetic makeup of individuals in a population. Who is correct?

• Abigail: The variety of Earth's species, the genetic material they contain, the ecosystems in which they live, and ecosystem processes

• Benjamin: The variety of genes found in a population or in a species

• Grace: The variety of processes that occur within ecosystems, such as energy flow and matter cycling

• Their teacher: The variety of genetic makeup of individuals in a population

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Emma, David, and Jackson are discussing the main cause of loss of biodiversity in their environmental science class. According to their discussion, what is the main cause of loss of biodiversity?

• Formation of new species due to evolutionary processes

• Extinction of existing species due to various factors

• Degradation of habitats needed for the development of new species

• Migration of species to new geographic locations due to climate change

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David, Jackson, and Aria are discussing the background extinction rate. Which of the following best describes the background extinction rate?

• The natural low rate of species extinction that existed before modern humans

• The significant rise in extinction rate due to human activity

• The rate at which new species arise

• The rate at which species migrate to new habitats

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