MCQ
It is relationship between Ophrys orchid and male bee.
- AMutualism
- ✓Commensalism
- CParasitism
- DCompetition
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Reason : Copper $-T$ prevents passage of sperms from vagina upwards into fallopian tubes.
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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 |