Q26 of 30 Page 202

Describe the different levels of biodiversity.

1. Species Diversity


● Species are a group of organisms, with similar appearance and capability to produce offspring


● The number of living organisms (plants and animals) found in a particular area is called the species biodiversity of that area.


● It is the measurement unit to assess the balance in the ecosystem


● The quantity and diversity in microorganisms are maxima among all organisms.


2. Genetic Diversity


● the variation found in different members of the same species due to the genetic unit.


● This variety is found among different population groups of one species, or different population group of different species, or between different members of a population.


● Genetic variation promotes the better ability for adaptation, hence fewer chances of extinction


● Due to genetic diversity (variation), new members of species are born


3. Ecosystem diversity


● Created by the interaction between biotic (living) and abiotic (nonliving) components of a particular region.


● There are many ecosystems present on earth. Examples are grasslands, mountains, deserts, humid land, sea, river valley, tropics, and forests, etc.


● These ecosystems have their geographical and environmental importance, which causes variation among plants and animals.


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