Tag: evs

Questions Related to evs

Which of the following animal doesn't help in the scattering of seed?

evs the journey of seeds vegetative propagation and seed dispersal seed dispersal seed dispersal and its methods other modes of vegetative propagation introduction to reproduction vegetative reproduction

  1. Birds

  2. Squirrel

  3. Fish

  4. None of the above

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Correct Option: D

Which of the followig seed travels only short distance?

evs the journey of seeds vegetative propagation and seed dispersal seed dispersal seed dispersal and its methods other modes of vegetative propagation introduction to reproduction vegetative reproduction

  1. Mango

  2. Cotton

  3. Neem

  4. Maple

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Correct Option: D
Explanation:

Wind dispersal of seeds do not ensure a coverage of larger distance and it also depends upon the morphology of seed as well. Maple seeds are samaras that mean they have a wing like structure and is also called wind seed but is not able to cover a great distance as it does not blow with the wind but flutter on the ground.

So, the correct option is 'Maple'

Aril is present in _____________.

evs the journey of seeds vegetative propagation and seed dispersal seed dispersal seed dispersal and its methods other modes of vegetative propagation introduction to reproduction vegetative reproduction

  1. Bitter gourd

  2. Cotton

  3. Litchi

  4. Strawberry

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Correct Option: A

In lettuce, red light is most effective in breaking seed dormancy because it.

evs the journey of seeds vegetative propagation and seed dispersal seed dispersal seed dispersal and its methods other modes of vegetative propagation introduction to reproduction vegetative reproduction

  1. Stimulates water absorption

  2. Reverses inhibitory effect of far-red light

  3. Enhances respiratory rate

  4. Breaks down ABA

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Correct Option: A

Small amount of nucleolus persisting in the mature seed is known as ____________.

evs the journey of seeds vegetative propagation and seed dispersal seed dispersal seed dispersal and its methods other modes of vegetative propagation introduction to reproduction vegetative reproduction

  1. Caruncle

  2. Endosperm

  3. Perisperm

  4. Ruminate endosperm

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Correct Option: A

Which of the following pairs are correctly matched?
a. Tegmen: Part of seed coat which actually is the dried up inner integument.
b. Caruncile- A spongy outgrowth of helium and absorbs water
c. Endothelrum: Inner epidermal layer of integument in unitegmic ovules and functions similar to another tapetum
d. Epithelium: Tissue of the scutellum abutting the endosperm; glandular in nature and secretes enzymes.
Select the correct answer.

evs the journey of seeds vegetative propagation and seed dispersal seed dispersal seed dispersal and its methods other modes of vegetative propagation introduction to reproduction vegetative reproduction

  1. $1, 2$ and $3$

  2. $1, 3$ and $4$

  3. $1, 2, 3$ and $4$

  4. $2$ and $4$

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Correct Option: A

After-ripening dormancy has been reported in the seed.

evs the journey of seeds vegetative propagation and seed dispersal seed dispersal seed dispersal and its methods other modes of vegetative propagation introduction to reproduction vegetative reproduction

  1. Fraxinus excelsior

  2. Parkinsoma aculeata

  3. Pistacia lentiscus

  4. Trigonella indica

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Correct Option: A

The seeds of ............ fruit are dry and dispersed by explosion due to the touch of our hands. 

evs the journey of seeds vegetative propagation and seed dispersal seed dispersal seed dispersal and its methods

  1. Cucumber

  2. Balsam

  3. Xanthium

  4. Calotropis

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Correct Option: B
Explanation:

  1. Cucumber needs insects like bees or other insects to disperse their seeds.
  2. Balsam seeds use explosion mechanism for seed dispersal.T he fruits are dry and light and easily ruptured even touch by hands.
  3. Xanthium also uses animals for seed dispersal the seed stuck to the body of animals and are very tough to remove.
  4. Calotropis widely use bees as the carrier for the dispersal of seeds.
So the correct option is  "Balsam".

Moringa (drum stick) seeds have .............. that aid in their dispersal.

evs the journey of seeds vegetative propagation and seed dispersal seed dispersal seed dispersal and its methods

  1. Wings

  2. Pappus

  3. Hairy tuft

  4. Thorns

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Correct Option: A
Explanation:

The seeds or fruits that are dispersed by wind generally are small and light. However, there are certain other adaptions also seen in it. Moringa (drumstick) seeds have wing-like structures that aid in their dispersal. Other seeds which have similar structure are Cinchona and Pinus. Thus, the correct answer is option A.

The _________ seeds are dispersed by birds which consume the fruit.

evs the journey of seeds vegetative propagation and seed dispersal seed dispersal seed dispersal and its methods

  1. Dandelion

  2. Coconut

  3. Pipal

  4. Lotus

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Correct Option: C
Explanation:

Pipal tree is the dwelling place of birds. The birds consuming the fruit digest the freshly part and eject the undigested seed along with the undigested matter.


Hence, the correct option is $\text{C}$