MCQ
Where does the ovum receive the sperm?
- AZona pellucid.
- BVegetal pole.
- CZona pellucid.
- DNone of these.
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| Column $- I$ | Column $- II$ (birds species) |
| $(a)$ Colombia | $(p)\; 1200$ |
| $(b)\; 41^o$ New York | $(q)\; 1400$ |
| $(c)$ India | $(r)\; 105$ |
| $(d)$ Greenland at $71^oN$ | $(s)\; 56$ |
|
Column- $I$ |
Column- $II$ |
|
$A.$ $500$ million years ago |
$1.$ Sea weeds and few plants |
|
$B.$ $350$ million years ago |
$2.$ Jawless fishes |
|
$C.$ $320$ million years ago. |
$3.$ Inverbebrates |