MCQ
Pollen grains can be stored for several years in liquid nitrogen having a temperature of
- A$-160^oC$
- B$-120^oC$
- ✓$-196^oC$
- D$-80^oC$
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$I.$ Water is essential for fertilisation
$II.$ Male gametophyte bears antheridia, while female gametophyte bears archegonium, which produces antherozoids and egg cell, respectively
$III.$ Antherozoids and egg cell fuses to give rise zygote. Zygote develops into young embryo. Embryo give rise to sporophyte
Which of the statements given above are correct?
$II.$ Some animals are poisonous
$III.$ Monarch butterfly are distasteful
The above adaptations are against
| Column-$I$ | Column-$II$ |
| (Common name) | (Taxonomic category-Order) |
| $A$. Wheat | $I$. Primata |
| $B$. Mango | $II$. Diptera |
| $C$. Housefly | $III$. Sapindales |
| $D$. Man | $IV$. Poales |