Which of the following options contains only heterotrophs?

Options

A. cow, sheep, carrot
B. Bacterial, fungi
C. Banana, pumpkin, brinjal
D. Wolf, mushroom, rose

Explanation

To determine which of the following options contains only heterotrophs, we need to understand what heterotrophs are. Heterotrophs are organisms that cannot produce their own food and instead rely on consuming other organisms for nourishment.

Let's analyze the options step by step:

1. **Identify the Organisms in Each Option**:
- The first option contains cows and sheep, along with carrots.
- The second option contains bacteria and fungi.
- The third option includes banana, pumpkin, and brinjal.
- The fourth option has a wolf, mushroom, and rose.

2. **Classify Each Organism**:
- **Cows and Sheep**: These are herbivores and are heterotrophs because they depend on plants for food.
- **Carrots**: Carrots are plants and are autotrophs because they can make their own food through photosynthesis.
- **Bacteria and Fungi**: Both of these organisms are heterotrophs as they decompose dead and decayed matter and rely on other organisms for nutrients.
- **Banana, Pumpkin, and Brinjal**: All of these are plants and therefore autotrophs.
- **Wolf**: Wolves are carnivores and heterotrophs as they consume other animals.
- **Mushroom**: Mushrooms are fungi and are heterotrophs because they absorb nutrients from their surroundings.
- **Rose**: Roses are plants and are autotrophs.

3. **Evaluate Each Option**:
- **First Option (Cows, Sheep, Carrots)**: Contains both heterotrophs (cows and sheep) and autotroph (carrots). Not correct.
- **Second Option (Bacteria and Fungi)**: Both are heterotrophs. This option is correct.
- **Third Option (Banana, Pumpkin, Brinjal)**: All are autotrophs. Not correct.
- **Fourth Option (Wolf, Mushroom, Rose)**: Contains heterotroph (wolf and mushroom) and autotroph (rose). Not correct.

4. **Conclusion**: The only option that contains only heterotrophs is the second option, which includes bacteria and fungi.

**Final Answer**: The correct answer is the second option: Bacteria and Fungi.

---