Question

The richness of species in an ecosystem is termed as:

• A. Genetic diversity
• B. Species diversity
• C. Community diversity
• D. All of these

Hint:

Levels of biodiversity:
Genetic diversity → variation within species
Species diversity → number and variety of species
Ecosystem diversity → variety of ecosystems Species richness is a key component of species diversity.

Answer 1

The Correct Option is B

Step 1: Understand the term “species richness”. Species richness refers to the number of different species present in a given ecosystem or geographical area.
Step 2: Relate species richness to types of biodiversity.
Genetic diversity: Variation of genes within a species.
Species diversity: Variety and abundance of different species in an ecosystem.
Community diversity: Refers to the structure and interaction of communities, not specifically species count.
Step 3: Identify the correct term. Since the question specifically refers to richness of species, the correct term is species diversity.
Hence, the correct answer is \[ \boxed{\text{Species diversity}} \]