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Relative abundance of different species ...

Relative abundance of different species is known as

A

Species

B

Species evenness

C

Species endemism

D

Genetic diversity

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**Step-by-Step Solution:** 1. **Understanding the Question**: The question asks for the term that describes the relative abundance of different species within a community. 2. **Identifying Components of an Ecosystem**: An ecosystem consists of biotic (living organisms) and abiotic (non-living components) factors. Here, we focus on the biotic components, which include various species of plants and animals. 3. **Defining Relative Abundance**: Relative abundance refers to how common or rare a species is in comparison to other species in a given community. It looks at the population sizes of different species and how they compare to each other. 4. **Introducing Species Evenness**: The term that specifically describes the relative abundance of different species is "species evenness." This concept helps to understand how evenly the individuals of different species are distributed in a community. 5. **Explaining Biodiversity Distribution**: Biodiversity is not uniformly distributed across ecosystems. Some areas may have a rich diversity of species, while others may have fewer. This uneven distribution contributes to the concept of species evenness. 6. **Understanding Ecological Pyramids**: In ecological pyramids, the base represents producers, and as you move up, you find primary consumers and then secondary consumers. The shape of the pyramid illustrates that a larger population of producers is needed to support a smaller population of carnivores, reflecting the concept of species evenness. 7. **Conclusion**: Therefore, the term that describes the relative abundance of different species is "species evenness." ---
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