Question

The flora, fauna, and microorganisms are collectively called as
А. Biosphere
B. Biome
C. Biota
D. None of the above

Answer 1

Hint: The animals are referred to as fauna and the plants are referred to as flora. A biome is a group of plants and animals that share similar characteristics for the animals they exist in.

Complete answer: The total group of organisms of a geographic area or a time period is called biota. Examples of biota are Cambrian biota and Madagascan biota.
The biota is specially used in ecology because it includes all the living organisms of a given environment. The biome is similar to biota. It refers to large geographical regions. An example of a biome is Tundra.
Hence, fauna and flora and other life forms such as fungi are collectively known as biota.

Additional information: The term “flora” in Latin means the goddess of flowers, plants, and fertility in Roman mythology.
1. Jules Thurmann was the first to differentiate between flora and vegetation (plant community, which means the plant life of a region).
2. Everything living on the planet earth is the biosphere.
3. The biosphere even extends to the upper regions of the atmosphere, which includes the birds and the insects.
4. The biosphere is also defined as the interaction between the living beings and elements of the lithosphere, hydrosphere, geosphere, and hydrosphere.

So, the correct answer to the question is option C.

Note: In simple terms, a biome is any major region where the biological community exists while biota is living organisms of a particular region.