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Summary What is biodiversity?

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What is biodiversity?. This documents includes what biodiversity is , factors that reduce biodiversity , what animals and plants compete for , evolution and what it is , natural selection, the causes for extinction , extinct animals and endangered animals and more ....

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Uploaded on April 21, 2024
Number of pages 26
Written in 2022/2023
Type Summary

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Module Science
School year 200

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What is biodiversity?
Biodiversity refers to the variety of life forms (organisms) found in a
particular ecosystem, region, or on Earth as a whole. It
encompasses the diversity of species, their genetic variation within
species, and the variety of ecosystems in which they live.
Biodiversity is often considered a measure of the health and
resilience of ecosystems and is crucial for maintaining ecosystem
functioning and stability.
Key components of biodiversity include:
Species Diversity: This refers to the variety of different species
present in a particular area. It includes both the number of species
(species richness) and their relative abundance (species
evenness). Areas with high species diversity tend to have a greater
variety of ecological niches and are often more resilient to
environmental changes.
Genetic Diversity: Genetic diversity refers to the variation in genes
within a species. It includes differences in DNA sequences, allelic
variations, and genetic traits among individuals within a population.
Genetic diversity is essential for species adaptation and survival, as
it provides the raw material for evolutionary change and allows
populations to respond to environmental challenges.
Ecosystem Diversity: Ecosystem diversity encompasses the
variety of habitats, ecosystems, and ecological processes within a
region or landscape. It includes terrestrial ecosystems such as
forests, grasslands, and wetlands, as well as aquatic ecosystems
like rivers, lakes, and coral reefs. Each ecosystem provides unique
resources and services to both humans and other organisms,
contributing to the overall functioning of the biosphere.
Importance of Biodiversity:
Ecosystem Services: Biodiversity provides a wide range of
ecosystem services essential for human well-being, including clean
air and water, pollination of crops, regulation of climate, nutrient
cycling, and soil formation.

,Biological Resources: Biodiversity is a source of biological
resources such as food, medicine, timber, and fibres, which support
human livelihoods and economies.
Resilience and Adaptation: Biodiversity enhances the resilience
of ecosystems to environmental changes and disturbances, such as
climate change, invasive species, and disease outbreaks. Diverse
ecosystems are better able to recover from disturbances and
maintain stability over time.
Cultural and Aesthetic Values: Biodiversity has cultural and
aesthetic value, contributing to spiritual and recreational
experiences and providing inspiration for art, literature, and cultural
traditions.
Genetic Resources: Genetic diversity within species provides
valuable genetic resources for agriculture, breeding programs, and
biotechnology, helping to develop new crop varieties, improve
livestock breeds, and discover new drugs and medical treatments.
Protecting and conserving biodiversity is essential for sustaining
ecosystems, maintaining ecological balance, and ensuring the
long-term well-being of both humans and the planet. However,
biodiversity is currently facing unprecedented threats from human
activities such as habitat destruction, pollution, overexploitation of
natural resources, climate change, and the spread of invasive
species. Efforts to conserve and restore biodiversity are therefore
crucial for preserving Earth's natural heritage and securing a
sustainable future.

Biodiversity is a series of different species, a variety of all
living spaces.

, ● As the Human population increases , Extinction increases as
well .
● Humans are negatively impacting biodiversity by destroying
animal habitat, mass carbon emissions.

Factors that would reduce biodiversity :
Biodiversity, the variety of life in all its forms, from genetic and

species levels to ecosystems, is crucial for maintaining ecological

balance and providing the services upon which humans depend.

However, several factors can significantly reduce biodiversity. Major

threats include:

Habitat Destruction: The primary cause of biodiversity loss is
habitat destruction, which results from activities like
deforestation, urbanisation, agriculture expansion, and mining.

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