MCQ
According to recent knowledge, the pineal body is considered as
- AA vestigial organ
- BAn organ of intelligence
- ✓An endocrine gland
- DAn organ of involuntary action
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| 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 |
Reason : Transplanted tissue has antigens which stimulate the specific immune response of the recipient.