Question

Measure of biodiversity of an area is
A. The number of species found there
B. The range of different life forms
C. Both (A) and (B)
D. None of the above

Answer 1

Hint: Biodiversity is a term used to describe the enormous variety of life present on Earth. It can be used more specifically to refer to all of the species in one region or ecosystem thus biodiversity refers to every living thing, including plants, bacteria, animals, and humans.

Complete answer:
Biodiversity is better defined as “the variability among living organisms from all sources including, inter-area, terrestrial, marine and other aquatic ecosystems and the ecological complexes of which they are part; this also includes diversity within species, between species and of ecosystems.” The importance of this definition is that it draws our attention to the many dimensions of biodiversity.
In spite of many tools and data sources, biodiversity always remains difficult to quantify precisely. But precise answers are seldom needed to devise an effective understanding of where biodiversity is, how it is changing over space and time, the drivers responsible for such change, the consequences of such change for ecosystem services and human well-being, and the response options available.
There are many measures of biodiversity; species richness (the number of species in a given area) represents a single but important metric that is valuable as the common currency of the diversity of life, but it must be integrated with other metrics to fully capture the biodiversity.
Biodiversity is the variety of different types of life found on the Earth and the variations within the species. It is a measure of the variety of organisms present in the different ecosystems.

Thus, the correct answer is option (C).

Note:
Biodiversity plays an important role in the ecosystem functions that provide supporting, provisioning, regulating, and cultural services. These services are essential for human well-being.