Seed Dispersion

Q.

Cotton seeds are dispersed by wind.

1. True
2. False

Q.

Which plant has no flowers?

1. Liverwort

2. Ferns

3. Mosses

4. All of these

Q. Soyabean seeds are dispersed by _______.

1. Wind
2. Humans
3. Animals
4. Explosion

Q. Select the common mode of dispersion of mango seeds?

1. Explosion
2. Wind
3. Water
4. People

Q. Why seed dispersal is important?

1. None of these
2. Survival of plant
3. Introduction of plant
4. Adaptation of plant

Q. The seeds with hooks that can attach to fur-like surfaces are dispersed by _______.

1. air
2. water
3. animals
4. explosion

Q. The image given below is of a tomato plant. How are the seeds of tomato plant dispersed?

1. Wind
2. Animals
3. Humans
4. Pod explosion

Q. Seeds of plants like green chilli and tomato were brought to the whole of India from _________.

1. Europe
2. Africa
3. America
4. Goa

Q. Which of the following plant seeds can be dispersed through water?

1. Both b and c
2. Lily
3. Coconut
4. Rose

Q. The list given below contains the characteristics of a particular seed.
(i) Light in weight
(ii) Small and dry
Which of the following dispersal type would help this seed in its dispersal?

1. Water
2. Explosion
3. Animal
4. Wind

Q. Which among the following seeds can be dispersed by both squirrels and humans?

1. Coconut
2. Cotton
3. Green peas
4. Mango

Q. The seed dispersal of coconuts take place by:

1. bursting
2. wind
3. water
4. squirrels

Q. The list given below contains the characteristics of a particular seed.
(i) Light in weight
(ii) Small and dry
Which of the following dispersal agents would best help this seed in it's dispersal?

1. Water
2. Wind
3. Animal
4. Explosive mechanism

Q. A goat ate tomatoes and excreted its seeds. The seeds were not digested and in undamaged condition. What type of dispersal is showcased here?

1. Wind dispersal
2. Waste dispersal
3. Animal dispersal
4. Water dispersal

Q. Which of the following seed spread to the long distance by bursting?

1. Mango
2. Mustard
3. Cotton
4. Soybean

Q.

Who helps in the dispersal of seeds of plants in the forest?

Q.

What would happen, if seeds are not dispersed?

Q. Identify the seeds disperse by the human.

1. Neem
2. Coconut
3. None of the above
4. Guava

Q.

Identify the missing step.
Pollination--->Fertilisation--->Seed formation---->?----> Germination

1. Fruit formation

2. Leaf formation

3. Seed dispersal

4. Flower formation

Q. Which of the following seeds can be dispersed by the birds?

1. Litchi
2. Papaya
3. Mango
4. Neem

Q. Identify the things that are not needed for sprouting.

1. Air
2. Sunlight
3. Seeds
4. Water

Q. Which type seeds can be dispersed by the wind?

1. Hairy seeds
2. Sticky seeds
3. Light seeds
4. Both A and C

Q. Which of the following seed scatter by sticking on the fur of the animal?

1. Mango
2. Coconut
3. Cotton
4. Xanthium

Q. .......... seeds are light in weight and travel through the air.

1. Papaya
2. Rice
3. Cotton
4. Maize

Q. What is the nature of cotton seed?

1. Solid
2. Hairy
3. Both A and C
4. Light

Q. Have you ever seen any seeds that can fly? What is it called in your area?