Chronic respiratory disorders like....... caused by pollen grain
Asthma
Bronchities
Tuberculosis $(TB)$
$A$ and $B$ both
Winged pollen grains are present in
Which one of the following is surrounded by a callose wall?
What is coconut water?
The insect Blastophaga grossorum is associated with the pollination of
Cryopreservation means storing of products in