Approximately how many species of insects are there in the world?

• 200,000

• 10,000

• 1 million

• 1.5 million

What term is used to describe the variety of life on Earth across all levels of biological organization?

• Genetic diversity

• Ecological diversity

• Biodiversity

• Species richness

Tags

NGSS.MS-LS2-5

What two factors must be considered to accurately determine species diversity?

• Species richness and genetic variation

• Species richness and relative abundance

• Genetic variation and ecosystem complexity

• Relative abundance and ecosystem stability

Tags

NGSS.MS-LS4-4

Which of the following is an example of species diversity?

• Variation in hair color in humans

• Genetic variation within a population

• Number and abundance of different types of mammals in a forest

• Different types of ecosystems in a region

Tags

NGSS.HS-LS2-6

NGSS.HS-LS4-2

NGSS.HS-LS4-5

What does genetic diversity refer to?

• The number of trophic levels in a biological community

• The variety of ecosystems in a region

• The amount of variation in genetic material within a species or population

• The number of different species in an ecosystem

Tags

NGSS.MS-LS4-4

Which of the following is an example of genetic diversity?

• Variation in the genes that encode for hair color in humans

• Number of different species in a forest

• Number of trophic levels in a biological community

• Different types of ecosystems in a region

Tags

NGSS.MS-LS4-4

What does ecological diversity include?

• Variation in genetic material within a species

• Number of different species in an ecosystem

• Variation in both terrestrial and aquatic ecosystems

• Number of individuals within each species

Tags

NGSS.MS-LS2-5

Which of the following is an example of ecological diversity on a global scale?

• Genetic variation within a population

• Variation in hair color in humans

• Number of different species in a forest

• Variation in ecosystems such as deserts, forests, grasslands, wetlands, and oceans

Why is biodiversity important for ecosystem stability?

• It reduces the complexity of food webs

• It decreases the number of trophic levels in a biological community

• It helps ecosystems maintain a steady state even after a disturbance

• It increases the number of species in an ecosystem

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-5

How does higher biodiversity help ecosystems recover after a disturbance?

• By reducing the number of species

• By reducing the number of trophic levels

• By increasing the complexity of the ecosystem

• By decreasing genetic variation

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-5