MCQ
Which one of the following animals has two separate circulatory pathways?
- ✓Whale
- BShark
- CFrog
- DLizard
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$(1)$ Medical termination of pregency $(MTP)$ during first trimester is generally safe
$(2)$ Generally chances of conception are nil until mother breast-feeds the infant upto two years
$(3)$ Intrauterine devices like copper$-T$ are effective contraceptives
$(4)$ Contraception pills may be taken upto one week after coitus to prevent conception Which two of the above statements are correct?
| Column $- I$ | Column $- II$ |
| $(A)$ Physiological barrier | $(1)$ Skin |
| $(B)$ Cellular barrier | $(2)$ Macrophages |
| $(C)$ Physical barriers | $(3)$ interferons |
| $(D)$ Cytokine barriers | $(4)$ Tears |
| $(5)$ Mucus |