MCQ
Sexually transmitted diseases can not get transmitted easily during use of
- ADiaphragm
- BCervical cap
- CBirth control pills
- ✓All of these
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$I.$ Organs which are different in basic structure and origin but performs similar functions are called analogous organ
$II.$ Organs with different to basic structure and origin but perform similar functions are called homologous organs
$III.$ Homologous organs lead to convergent evolution
$IV.$ Analogous organ leads to divergent evolution
The correct combination is
| Method | Mode of Action |
| $(A)$ The pill | $(i)$ Prevents spermsreaching cervix |
| $(B)$ Condom | $(ii)$ Prevents implantation |
| $(C)$ Vasectomy | $(iii)$ Prevents ovulation |
| $(D)$ Copper $T$ | $(iv)$ Semen contains no sperms |
$R$- Embryo is formed from zygote.