Male and female cockroaches can be distinguished externally through:
- ✓Anal styles in male.
- BAnal cerci in female.
- CAnal style and antennae in females.
- DBoth $(b)$ and $(c).$
Answer: A.
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View full solution →| a. | Operculum | i. | Ctenophora |
| b. | Para podia | ii. | Mollusca |
| c. | Scales | iii. | Porifera |
| d. | Comb plates | iv. | Reptilia |
| e. | Radula | v. | Annelida |
| f. | Hairs | vi. | Cyclostomata and Chondrichthyes |
| g. | Choanocytes | vii. | Mammalia |
| h. | Gill slits | viii. | Osteichthyes |
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