11.1 Biodiversity Flashcards
(12 cards)
Define biodiversity.
The variety of living organisms present in an area
Define ecosystem
All the interacting living organisms and non-living conditions in an area
Define population.
Group of individuals of the same species living in the same area
Define habitat
Natural home or environment of an organism
Define interdependence
Organisms in one ecosystem depending on eachother for survival
What are the 3 types of biodiversity?
Habitat, species, genetic
What is habitat biodiversity?
The number of habitats found within an area
What are the 2 components of species biodiversity?
Species richness and species evenness
What is species richness?
The number of different species living in a particular area
What is species evenness?
A comparison of the number of individuals of each species living in a community
What is genetic biodiversity?
The variety of genes within a species
Suggest why greater genetic biodiversity increases a species’ chances of long-term survival.
-Greater genetic variation, so increased likelihood that some organisms are suited to a habitat change
-e.g catching prey, avoiding new predators, disease resistance
