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Questions and Answers
Olsem wanem yu save talem se ol i no stap wetem wan wan?
Olsem wanem yu save talem se ol i no stap wetem wan wan?
Olsem wanem i go long ol i stap lénem?
Olsem wanem i go long ol i stap lénem?
Ol wanem samting i nidim blong lukim?
Ol wanem samting i nidim blong lukim?
Nambawan, wanem samting yufala i mas mekim?
Nambawan, wanem samting yufala i mas mekim?
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Olsem wanem yu save lukim ol i mas rekognis?
Olsem wanem yu save lukim ol i mas rekognis?
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Which factor most significantly influences the level of engagement in the provided images?
Which factor most significantly influences the level of engagement in the provided images?
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What element in the images could detract from the overall visual message?
What element in the images could detract from the overall visual message?
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Which visual technique is most likely used to create a sense of depth in the images?
Which visual technique is most likely used to create a sense of depth in the images?
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What aspect of composition primarily contributes to the balance of the images?
What aspect of composition primarily contributes to the balance of the images?
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Which principle of design is most effectively illustrated in the strong use of contrast in the images?
Which principle of design is most effectively illustrated in the strong use of contrast in the images?
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Study Notes
Biodiversity Definition
- Biodiversity is the variation among living organisms from different places like land, sea, and deserts, and the ecological relationships between them.
What is Biodiversity?
- Biodiversity describes the richness and variety of life on Earth.
- It is a vital feature of our planet, without which life cannot survive.
- The term "biodiversity" was first used in 1985.
- It's important in all types of ecosystems, both natural and man-made.
- Biodiversity involves the variety of plants, animals, and microorganisms in an area.
- It includes the number and relative abundance of different organisms in an ecosystem.
- Biodiversity also reflects the organization of organisms at different levels.
- Biodiversity is crucial for ecological and economic reasons. It provides food, shelter, resources, and income through tourism.
- Understanding biodiversity is essential for a sustainable lifestyle.
Types of Biodiversity
- There are three main types of biodiversity:
- Species diversity: This refers to the number of different types of species found in a particular area.
- Genetic diversity: This refers to variations in the genes of organisms within a species.
- Ecological diversity: This refers to the variety of ecosystems in a region, including different habitats and their interactions.
Species Diversity
- Species diversity measures the variety of different species in an area.
- It encompasses all organisms, from plants to microorganisms.
- No two individuals of the same species are exactly alike.
Genetic Diversity
- Genetic diversity describes the variations in the genetic makeup of individuals within a species.
- This variation is crucial for adaptation and survival.
Ecological Diversity
- Ecological diversity refers to the variety of ecosystems present in a region.
- It includes the differences in habitats, communities, and interactions within an area.
- Examples include deserts, rainforests, and mangroves.
Importance of Biodiversity
- Biodiversity is essential for sustaining life on Earth.
- It provides numerous benefits to humans.
Biodiversity in India
- India is a highly biodiverse country.
- It has a large number of plant species.
- It's the origin of various important crops.
- India has many domesticated species.
How Does Biodiversity Affect the Stability of an Ecosystem?
- Habitat loss and degradation
- Climate change
- Invasive species
- Pollution
- Overuse of natural resources
Species Diversity
- Three measures are used to assess species diversity.
- Alpha diversity: The number of species in a small, local community.
- Beta diversity: How species composition changes across different environments.
- Measures help scientists understand how diverse a particular area is.
Genetic Diversity
- Genetic diversity is crucial for species' survival and resilience to environmental changes.
- Loss of genetic diversity can lead to inbreeding and reduced adaptability.
- The loss of species leads to the loss of unique genes.
Taxonomic Diversity
- Taxonomic diversity covers all levels of living things (e.g., species, genera).
- It considers the variety of organisms and their relationships.
- Understanding the relationships between organisms is important.
Human Impacts on Biodiversity
- Human activities are causing a rapid decline in biodiversity.
- Habitat destruction is a major driver.
- Agriculture, development, and resource extraction are affecting ecosystems severely.
- This includes extinction of species, and changes in biodiversity.
Ecological Theory about Effects of Habitat Destruction
- The theory of island biogeography explains how species richness relates to island size and distance from other areas.
- Species immigration and extinction rates affect biodiversity on an island.
- Island size and proximity affect immigration and extinction rates.
Invasion by Exotic Species
- Introducing non-native species can disrupt ecosystems and lead to the decline or extinction of native species.
- Invasive species can outcompete native species and alter food webs.
- A good example of this is the intro of the brown tree snake to Guam.
Biodiversity Loss (Why Should We Care?)
- Only 10-20% of all species have been identified.
- Loss of biodiversity is a concern.
- Biodiversity loss has economic, evolutionary, and ethical implications.
Economic Arguments
- Loss of biodiversity can have severe economic repercussions.
Evolutionary Arguments
- Loss of biodiversity affects the evolutionary processes.
- Disrupting existing patterns limits the development of new species.
Ethical Arguments
- Maintaining biodiversity is an ethical responsibility.
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Description
Biodiversity i olsem variation blong ol laef we i stap long difren ples olsem lan, sea, mo desat. I impoten blong save long biodiversity blong mekem surefala laef mo ekology. Dis quiz bae yu save long defenisyon, tipe mo impoten blong biodiversity long olgeta ekosistem.
