Select the correct information about American cockroach (Periplaneta americana) .

Options

A. `{:("Head","Epignathus condition"):}`
B. `{:("Head","10 chambered"):}`
C. `{:("Malpighian tubules ","50-60in number "):}`
D. `{:("Anal cerci","Help in copulation"):}`

Answer

To solve the question regarding the correct information about the American cockroach (Periplaneta americana), we will analyze each option provided in the question step by step.

### Step 1: Analyze the first option regarding the head orientation
- The first option states that the head of Periplaneta americana is in an epignathus condition.
- Insects can be categorized based on the orientation of their heads.
- **Prognathus**: Head is horizontally oriented with mouthparts pointing anteriorly (found in beetles and earwigs).
- **Hypognathus**: Head is vertically oriented with mouthparts pointing downward (characteristic of cockroaches).
- **Epignathus**: Head is obliquely oriented.
- Since the head of the American cockroach is vertically oriented (hypognathus), this statement is incorrect.

### Step 2: Analyze the second option regarding the heart chambers
- The second option claims that the heart of the cockroach is 10 chambered.
- In reality, the heart of the American cockroach has 12 to 13 chambers.
- Therefore, this statement is also incorrect.

### Step 3: Analyze the third option regarding Malpighian tubules
- The third option states that there are 50-60 Malpighian tubules present in the cockroach.
- However, the American cockroach actually has approximately 150 Malpighian tubules.
- Thus, this statement is incorrect as well.

### Step 4: Analyze the fourth option regarding anal saccae
- The fourth option mentions that anal saccae help in copulation.
- This is true; anal saccae are present in male cockroaches and assist in holding the female during copulation.
- Therefore, this statement is correct.

### Conclusion
After analyzing all the options, the only correct information about the American cockroach (Periplaneta americana) is found in option 4, which pertains to the anal saccae and their role in copulation.

### Final Answer
The correct information about the American cockroach (Periplaneta americana) is found in option 4.

---