Number of malpighian tubules present in Cockroach is

Options

A. 50 - 60
B. 80 - 90
C. 100 - 150
D. 200 - 250

Answer

To determine the number of Malpighian tubules present in a cockroach, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Organism**: The scientific name of the cockroach is Periplaneta americana. This is important as it specifies the species we are discussing.

2. **Understand the Digestive System**: The cockroach has a three-part digestive system consisting of the foregut, midgut, and hindgut. This structure is essential for understanding where the Malpighian tubules are located.

3. **Locate the Malpighian Tubules**: The Malpighian tubules are found at the junction of the midgut and hindgut. This is a critical point as it tells us where these structures are situated within the cockroach's body.

4. **Count the Malpighian Tubules**: It is noted that there are approximately 100-150 Malpighian tubules in a cockroach. This range is important for answering the question accurately.

5. **Function of Malpighian Tubules**: These tubules serve two primary functions: excretion and osmoregulation. While this information is not directly needed to answer the question, it provides context for the importance of these structures.

6. **Conclude the Answer**: Based on the information gathered, the number of Malpighian tubules present in a cockroach is between 100 and 150.

### Final Answer:
The number of Malpighian tubules present in a cockroach is **100-150**.

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