Which one of the following statement is true for cockroach ? a. the number of ovarioles in each ovary is ten. b. the larval stage is caterpillar. c. anal styles are absent in females. d. they are ureotelic.

Options

A. the number of overioles in each ovary are ten
B. the larval stage is called caterpiller
C. anal styles are absent in females
D. they are ureotelic

Explanation

To determine which statement is true for cockroaches, we will analyze each option one by one:

1. **Option A: The number of ovarioles in each ovary is ten.**
- In female cockroaches, the number of ovarioles in each ovary is actually 8, not 10. Therefore, this statement is incorrect.

2. **Option B: The larval stage is caterpillar.**
- The larval stage of a cockroach is not a caterpillar. Instead, it goes through a stage called "nymph" after the egg stage. Hence, this statement is also incorrect.

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