The heart is ......... chambered in Periplaneta

Options

A. 4
B. 9
C. 11
D. 13

Answer

To answer the question "The heart is ......... chambered in Periplaneta," we can follow these steps:

### Step 1: Understand the Organism
Periplaneta is the scientific name for the common cockroach. Knowing this helps us focus on the specific anatomy of the cockroach.

### Step 2: Identify the Heart Structure
The heart of the cockroach is part of its open circulatory system. This system is different from the closed circulatory systems found in many other animals.

### Step 3: Count the Chambers
The heart of the cockroach is composed of multiple chambers. Specifically, it has 13 chambers. These chambers are responsible for pumping hemolymph (the fluid equivalent to blood in insects) throughout the body.

### Step 4: Conclusion
Based on the information gathered, we conclude that the heart of Periplaneta (the cockroach) is 13 chambered.

### Final Answer
The heart is **13 chambered** in Periplaneta.

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