Tag: seeds and seeds

Questions Related to seeds and seeds

Consider the following statements regarding the introduction of plant materials and seeds.
a. Plant materials and seeds are always introduced from developed countries into developing/less developed countries.
b. The import of living plant materials must be accompanied by a certificate of health to prevent introduction of new disease and insect pests.
c. The superior varieties may be used in hybridization programmes.
Of these statements.

evs seeds and seeds introduction to plant organs and germination seed to plants germination of seeds

  1. $1, 2$ and $3$ are correct

  2. $1$ and $2$ are correct

  3. $2$ and $3$ are correct

  4. $1$ and $3$ are correct

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Correct Option: A

Occasionally, in some seeds such as ______(A) ___, remnants of nucellus are also persistent.This residual, persistent nucellus is the __(B)__________.

evs seeds and seeds introduction to plant organs and germination seed to plants germination of seeds

  1. (A) Castor and beet (B) Endopserm

  2. (A) Castor and beet (B) Carucele

  3. (A) Maize and rice (B) Aleurone layer

  4. (A) Black pepper and beet (B) Perisperm

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Correct Option: A

State whether the following statements are true or false.
A dry pea seed will have more dry weight than a germinated one.

evs seeds and seeds introduction to plant organs and germination seed to plants germination of seeds

  1. True

  2. False

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Correct Option: A
Explanation:

The dry seeds of the pea have more dry weight as all the moisture in the seeds got absorbed and becomes hard due to the loss of water. In the germinated seed, more water is present so its fresh weight will be higher than the dry seed. Fresh weight is the weight of the living part of the plant while dry weight is the weight of the dry plant part.

So, the correct statement is 'True'. 

Which of the following is the use of lichens in case of pollution?

evs seeds and seeds interdependencies among organisms hunting plant interdependence between plants and animals

  1. They treat the polluted water.

  2. They act as bioindicators of air pollution.

  3. They promote pollution.

  4. Lichens are not related with pollution.

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Correct Option: B
Explanation:

Lichens are most sensitive to sulphur dioxide pollution and do not grow in areas with high levels of air pollution. Hence, Lichens are an important indicators of air pollution.

The earth's atmospheric window is in the:

evs seeds and seeds interdependencies among organisms hunting plant interdependence between plants and animals

  1. Ultraviolet region

  2. Visible region

  3. Infrared region

  4. Polar regions

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Correct Option: C

Lichens are described as indicator of 

evs seeds and seeds interdependencies among organisms hunting plant interdependence between plants and animals

  1. Air pollution

  2. Water pollution

  3. Soil pollution

  4. Agricultural productivity

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Correct Option: A

Diversity of organisms include three Domains such as

evs seeds and seeds interdependencies among organisms hunting plant interdependence between plants and animals

  1. bacteria, archae, eukarya

  2. binomial system of classification

  3. monera, protista, fungi, plantae, animalia

  4. membrane bound organelles, no peptidoglycan in cell walls, introns

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Correct Option: A

Living organisms are operated by means of

evs seeds and seeds interdependencies among organisms hunting plant interdependence between plants and animals

  1. Food

  2. Energy

  3. Water

  4. Environment

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Correct Option: B

Lichens in a habitat indicates 

evs seeds and seeds interdependencies among organisms hunting plant interdependence between plants and animals

  1. Zinc in soil

  2. Copper in soil

  3. Carbon monoxide in air

  4. Lack of air pollution

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Correct Option: D

Plants capable of growing in nitrogen deficient soil is

evs seeds and seeds plant adaptation and modification leaves leaf modification

  1. Orchids

  2. Ferns

  3. Insectivorous plants

  4. Rafflesia

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Correct Option: C
Explanation:

Insectivorous plants are plants which are capable of growing in nitrogen deficient soil because they obtain their nitrogen content partially from the insects they ingest.

So, the correct option is 'Insectivorous plants'.