Trees `to` Birds `to`Lice `to` Bacteria Above food chain is

Options

A. Predatory
B. Grazing
C. Detritus
D. Parasitic

Answer

To determine the type of food chain represented by the sequence: Trees → Birds → Lice → Bacteria, we can analyze each component step by step.

### Step-by-Step Solution:

1. **Identify the Organisms**:
- The first organism is **Trees**, which are producers. They produce energy through photosynthesis.
- The second organism is **Birds**, which are typically primary consumers that may eat fruits from trees.
- The third organism is **Lice**, which are parasites that live on birds and feed on their blood or skin.
- The fourth organism is **Bacteria**, which are decomposers that break down dead organic matter.

2. **Analyze the Relationships**:
- In a food chain, organisms are connected by who eats whom. Here, birds consume fruits from trees, making trees the producers and birds the primary consumers.
- Lice are parasites that live on birds, indicating that they derive their nutrients from the birds without killing them immediately.
- Bacteria play a role in decomposition, breaking down dead organisms, which is crucial for nutrient cycling.

3. **Determine the Type of Food Chain**:
- Since lice are parasites that feed on birds, this indicates a parasitic relationship.
- The presence of a parasite (lice) in the food chain suggests that it is not a typical grazing food chain, where one organism simply eats another.
- Therefore, this food chain can be classified as a **parasitic food chain** because it includes a parasite (lice) that affects a consumer (birds).

4. **Conclusion**:
- The food chain described is a **parasitic food chain** because it involves a parasite (lice) that feeds on a consumer (birds) within the context of a producer (trees) and decomposers (bacteria).

### Final Answer:
The type of food chain represented is a **parasitic food chain**.

---