From where you will collect E. coli ?

Options

A. Human excreta
B. On leaves
C. Water
D. Human stomach

Answer

To answer the question "From where will you collect E. coli?", we can follow these steps:

### Step 1: Understand what E. coli is
E. coli, or Escherichia coli, is a type of bacteria that is commonly found in the intestines of humans and animals. Most strains are harmless and play a role in maintaining a healthy digestive system.

### Step 2: Identify the typical habitat of E. coli
E. coli is a normal resident of the bowel, which refers to the intestines in the alimentary canal. This means that it is primarily found in the human digestive tract.

### Step 3: Evaluate the options provided
The options given are:
1. Human excreta
2. Leaves
3. Water
4. Human stomach

### Step 4: Analyze each option
- **Human excreta**: This is a likely source of E. coli since it is present in the intestines and is excreted in feces.
- **Leaves**: E. coli is not typically found on leaves unless they are contaminated with fecal matter.
- **Water**: While E. coli can be found in water if it is contaminated, it is not a typical habitat.
- **Human stomach**: E. coli is generally not found in the stomach, as it is more prevalent in the intestines.

### Step 5: Conclude the correct answer
Based on the analysis, the best option for collecting E. coli is **human excreta**, as it is a natural habitat for this bacterium.

### Final Answer:
You will collect E. coli from **human excreta**.

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