Unit 2/3 Review

The variety of life, that we can look at through the lens of species, genetic, ecosystem, or functional varieties.

• Extinction

• Biodiversity

• Ecosystem Diversity

• We just call it variety of life.

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This type of biodiversity focuses on the variety of processes in the ecosystem such as nutrient cycling, food webs, etc.

• Species Diversity

• Genetic Diversity

• Ecosystem Diversity

• Functional Diversity

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An important reason of why biodiversity matters due to ensuring against an ecosystems collapse, because the more diverse the ecosystem the more functions in the ecosystem. This is known as:

• Biodiversity

• The Insurance Hypothesis

• The Hypothesis

• The Survival Hypothesis

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NGSS.MS-LS2-5

A species facing a crisis can do one of three things: Adapt, Migrate, or

• Survive

• Become extinct

• Evolve

• Nothing

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This is a species that is vulnerable to extinction due to being found in only one location, examples include axolotl’s, panda bears, and most amphibians.

• Endemic Species

• Pandemic Species

• Vulnerable Species

• Extinction Species

The low rate at which species ceased to exist throughout much of Earth’s History:

• Functional Extinction

• Mass Extinction

• Natural Extinction

• Background Extinction

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Scientists believe we are entering a 6th mass extinction due primarily to

• Habitat Fragmentation

• Human Actions

• Nutrient Cycling

• Captive Breeding

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Natural Capital that stores the water and nutrients needed by plants:

• Topsoil

• Deserts

• Rainforests

• Groundwater

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Lack of nutritious food is known as

• Food insecurity

• Food Availability

• Food Scarcity

• Groundwater

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Process in which the productive potential of topsoil falls by 10% or more because of prolonged drought or human activities that expose topsoil to erosion.

• Desertification

• Soil Pollution

• Soil Salinization

• Overuse of Topsoil