11.1 Flashcards

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1
Q

What is biodiversity?

A
  • Biodiversity- variety of living organisms present in an area, plants, animals, fungi and other living things.
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2
Q

What is the importance of biodiversity?

A
  • essential in maintaining a balanced ecosystem
  • All species are interconnected so rely on each other
  • Regions of reduced biodiversity harms all species in the ecosystem

High biodiversity…less stressful environment and better ability to withstand changes to the environment
There are more complex food webs

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3
Q

What are the 3 types of biodiversity?

A
  • habitat biodiversity
  • Species biodiversity
  • Genetic biodiversity
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4
Q

What is habitat biodiversity?

A
  • refers to the number of different habitats found within an area
  • Greater habitat diversity, greater species biodiversity
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5
Q

What is species diversity?

A
  • species richness- number of different species in an particular area
  • Species evenness- comparison of the individuals of each species living in a community
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6
Q

What is genetic biodiversity?

A
  • genetic biodiversity refers to the variety of genes/alleles that make up a species
  • All members of the species share the same genes, but they have different versions of these genes called alleles
  • Different version of genes are alleles leading to genetic biodiversity leading to different characteristics being exhibited
  • Organisms with more advantageous alleles are better able to adapt to a changing environment
  • Greater genetic biodiversity allows for better adaptation to a changing environment, and is more likely to result in individuals who are resistant to disease
  • As a result, they are less likely to go extinct
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