MCQ
Spermiogenesis$/$spermateleosis is formation of spermatozoa from:
- APrimary spermatocyte
- BSecondary spermatocyte
- ✓Spermatids
- DGerminal cells of testes
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Make the correct pair :
| Column $- I$ | Column $- II$ |
| A- Tapetum | i- Degenerate during development |
| B- Intine | ii- Resistant organic materials |
| C- Vegetative cell | iii- Pollen tube |
| D- Sporopollenin | iv- Provide nourishment to pollen grains |
| Column $- I$ | Column $- II$ |
| $(A)$ Lamark | $(p)$ Finch bird |
| $(B)$ De Vries | $(q)$ Evening primerose |
| $(C)$ Darwin | $(r)$ Giraffes |
| $(s)$ Melanic moths |
$II.$ The organism which tolerate narrow range of salinity called ...$B$...
Choose the correct option for $A$ and $B$