All living organisms on or around the Earth constitute:

Options

A. Biome
B. Biosphere
C. Community
D. Biocoenosis

Answer

To solve the question "All living organisms on or around the Earth constitute:", we can follow these steps:

### Step 1: Understand the Question
The question is asking about a term that encompasses all living organisms on or around the Earth.

**Hint:** Think about the different terms used in ecology that refer to groups of living organisms.

### Step 2: Identify Key Terms
In ecology, we often refer to living organisms as "biotic" components, while non-living components are termed "abiotic."

**Hint:** Consider what term is used to describe the combination of both biotic and abiotic components in an ecosystem.

### Step 3: Define the Relevant Term
The term that includes all living organisms (biotic) and their interactions with the non-living environment (abiotic) is known as the "biosphere."

**Hint:** Recall that the biosphere is a global term that encompasses all ecosystems and living beings.

### Step 4: Confirm the Answer
The biosphere includes all forms of life on Earth, including plants, animals, and microorganisms, as well as their interactions with the elements of the environment such as air, water, and soil.

**Hint:** Think about how the biosphere is essential for life and includes various ecosystems.

### Final Answer
All living organisms on or around the Earth constitute the **biosphere**.

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