First slide

Pre-fertilisation : Structures and Events

Question

Pollen grains are long, ribbon like in

Easy

A

Zostera
B

Vallisneria
C

Hydrilla
D

Grasses

Solution

In seagrasses, female flowers remain submerged in water and the pollen grains are released inside the water. Pollen grains are long, ribbon like in Zostera. They are carried passively inside the water; some of them reach the stigma and achieve pollination.

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