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Question
How many times do nymphs moult to reach the adult form of cockroach?
Solution
A nymph requires to moult 13 times to reach the adult cockroach form.
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RELATED QUESTIONS
Draw a labelled diagram of alimentary canal of a cockroach
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| Column I | Column II |
| A. Phallomere | i. Chain of developing ova |
| B. Gonopore | ii. Bundles of sperm |
| C. Spermatophore | iii. Opening of the ejaculatory duct |
| D. Ovarioles | iv. The external genitalia |
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Malpighian tubules help in removal of ______.
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