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Byju's Answer
Standard IX
Biology
Xenogamy
The cross-pol...
Question

The cross-pollinating plants depend on external agents like bees, butterflies, wind etc for the transfer of pollen grains. The agents are called as________


A

pollinating agents

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B

transferring agents

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C

meeting agents

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D

exchange agents

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Solution

The correct option is A

pollinating agents


The cross-pollinating plants depend on external agents like bees, butterflies, wind etc for the transfer of pollen grains. The agents are called as pollinating agents. Depending on the type of agents, pollination is classified differently.
Anemophily: wind
Entomophily: insects
Hydrophily: water
Elephophily: Elephants


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Q.

Assertion (A): Plants pollinated by abiotic agents produce enormous amounts of pollen as compared to plants pollinated by biotic agents.

Reason (R): Pollen grains coming in contact with stigma is a chance factor in anemophily and hydrophily.


Q. Read the following statements and find out the incorrect statement.

a. Majority of flowering plants use a range of animals as pollinating agents.

b. Bees, butterflies, flies, beetles, wasps, ants, moth, birds (sunbirds and humming birds) and bats are the common pollinating agents.

c. Among the animals, insects particularly bees are the dominant biotic pollinating agents.

d. Even larger animals such as some primates (lemurs), arboreal (tree dwelling) rodent, or even reptiles (gecko lizard and garden lizard) have also been reported as pollinators in some species.

e. Often, flowers of animal pollinated plants are specifically adapted for a particular species of animal.

Q.

During pollination, ________ are transferred by the pollinating agents.


Q.

Regarding assertion and reason, select the right opton.

Assertion (A): Plants pollinated by abiotic agents produce enormous amount of pollen when compared to plants pollinated by biotic agents.

Reason(R): Pollen grains coming in contact with stigma is a chance factor in anemophily and hydrophily.


Q.

Regarding assertion and reason, select the right option.

Assertion (A): Plants pollinated by abiotic agents produce enormous amount of pollen when compared to plants pollinated by biotic agents.

Reason(R): Pollen grains coming in contact with stigma is a chance factor in anemophily and hydrophily.


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