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Questions and Answers
What is included in the concept of biodiversity?
What is included in the concept of biodiversity?
- Differences in genes among individuals of a species (correct)
- The size of a particular animal population
- The variety of ecosystems on Earth
- The number of species in a specific region
At what scales does biodiversity occur?
At what scales does biodiversity occur?
- Exclusively at the local level
- Only at the national level
- Primarily at the global level
- Locally, regionally, nationally, and globally (correct)
What does biodiversity include in terms of ecosystems?
What does biodiversity include in terms of ecosystems?
- Exclusively aquatic ecosystems
- Mainly terrestrial ecosystems
- Both terrestrial and aquatic ecosystems (correct)
- Only ecosystems in specific regions
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Study Notes
Biodiversity Concept
- Biodiversity refers to the variety of different species of plants, animals, and microorganisms that live in an ecosystem or on Earth as a whole.
- It also includes the genetic diversity within each species, the variety of ecosystems, and the interactions between different species and their environment.
Scales of Biodiversity
- Biodiversity occurs at multiple scales, including:
- Genetic diversity: variations within individual species
- Species diversity: number of different species in an ecosystem
- Ecosystem diversity: variety of different ecosystems in a region or on Earth
Ecosystems and Biodiversity
- Biodiversity includes different types of ecosystems, such as:
- Terrestrial ecosystems (forests, grasslands, deserts)
- Freshwater ecosystems (rivers, lakes, wetlands)
- Marine ecosystems (coral reefs, estuaries, open ocean)
- Arctic and alpine ecosystems (tundra, arctic sea ice)
- It also includes the interactions between species and their environment, such as:
- Predation and symbiotic relationships
- Nutrient cycling and decomposition
- Climate regulation and disturbance regimes
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