| I: | do not belong to the same class but belong to the same super-class. |
| II: | are placed under the same division in sub-phylum vertebrata. |
What will you look for to identity the sex of the following? Select the correct match.
| 1. | Male frog – a copulatory pad on the first digit of the hind limb |
| 2. | Female cockroach – anal cerci |
| 3. | Male shark – claspers borne on pelvic fins |
| 4. | Female Ascaris – sharply curved posterior end |