Seed Dispersal

IMPORTANT

Seed Dispersal: Overview

This Topic covers sub-topics such as Seed Dispersal, Dispersal of Seeds by Humans, Flying Seeds, Uses of Velcro and, Wandering Seeds

Important Questions on Seed Dispersal

EASY
IMPORTANT

Think what would happen, if seeds did not spread and remain in one place only?

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How do the seeds of Gut patna and Puth kanda move from one place to another? 

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How does plants grow on roofs?

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Water hyacinth travels through water from one place to another.     

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Seeds of _____ travel in air from one place to another place.

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Seeds dispersed through wind will have fleshy parts.

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Man also facilitates seed dispersal.

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Many plants have been brought from foreign countries and grown here. How have they enriched our agricultural sector?

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Write the adaptations the plants have for seed dispersal.

Mode of seed dispersal Plants Adaptations
Through wind Pappus, Mahogany Light, hairy, wings
Through water Coconut  
Through animals Ficus, Jack tree, Guava tree, Arrow grass  
By bursting Lady's finger, Balsam  

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What are the peculiarities that help a coconut to flow through water?

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The dispersal of seed takes place in the same manner in mahogany and balsam.

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The seeds of all plants are dispersed through the wind.

HARD
IMPORTANT

Make a list of the different ways by which seeds are spread.

MEDIUM
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Think what would happen if seeds did not spread and remained at one place only.

EASY
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The fruits of Ruellia tuberosa explode when they come in contact with _____.

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Seeds dispersed by _____ generally possess hairy outgrowth.

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Where do plants come from?

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Some seeds that are dispersed by humans and animals have juicy fruits. How does this help?

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Plants produce many seeds. But many of them are destroyed or eaten up. Suppose all seeds grew up into adult plants. What problems can this lead to?

HARD
IMPORTANT

Complete the mind map on dispersion of seeds.

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