Pollen grains of many species cause severe allergies and bronchial afflictions in some people,often leading to chronic respiratory disorders such as .....

  • A
    Asthma
  • B
    Bronchitis
  • C
    Both $A$ and $B$
  • D
    Emphysema

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Similar Questions

Name the plants which exhibit unusual flowering phenomena.

Rarely among angiosperms,the pollen grains influence the endosperm. This is called as:

Match the following columns:
List-$I$List-$II$
$(a)$ Stamen$(i)$ Microsporangium
$(b)$ Pistil$(ii)$ Microsporophyll
$(c)$ Anther$(iii)$ Megasporangium
$(d)$ Ovule$(iv)$ Megasporophyll

What type of gametes are found in $Capsella$?

$A$: The higher organisms must evolve a special mechanism for gamete transfer.
$R$: Male and female gametes are formed in different individuals.

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