Advertisements
Advertisements
प्रश्न
Differentiate the following.
Pollen and Nectar
Advertisements
उत्तर
| Sr. No. | Pollen | Nectar |
| 1. | Pollen is a fine to a coarse powdery substance comprising pollen grains which are male microgametophytes of seed plants, which produce male gametes | It is a sweet viscous secretion secreted by the flower of plants. |
APPEARS IN
संबंधित प्रश्न
What are the desirable characters of bee varieties suitable for honey production?
For increasing production, what is common in poultry, fisheries and bee-keeping?
Write advantages of bee keeping.
Write down the desirable characters of bee variety suitable for bee keeping.
Explain the role of workers in a bee colony.
Assertion: Nuptial flight is a unique flight taken the queen bee followed by several drones.
Reason: The queen bee produces a chemical substance called pheromone. The drones in that area are attracted to the pheromone and then mating takes place.
Select the INCORRECT statement.
Which of the following is a correct statement?
Assertion (A): The honey bee queen copulates only once in life.
Reason (R): It can lay both fertilised and unfertilized eggs.
______ is the maintenance of bee colonies in modem hives.
