Questions

Pollen is a male plant gamete. When microspores produced after meiosis process on microsporangia of male gametophyte undergo mitosis and forms pollen grains.

The Cathedral of Notre Dame is located in paris(France) . It was one of the earliest French Cathedrals to be built in the Gothic style. It was built between A.D 1163 and AD 1270. About the 12th century, a new style- the Gothic -was developed in France.

The galapagos finches are an excellent example of speciation which means the formation of distinct species in the course of evolution.

Temperate Cyclones are cyclones of mid-latitudes and hence are primarily under influence of permanent winds of mid-latitudes i.e. westerlies. Their movement is therefore eastwards of their origin with average velocity of 32km per hour in summers and 48km per hour in winters.

Movement of Tropical CyclonesNormally, they move from east to west under the influence of trade winds because trade winds are permanent winds of tropical latitudes. The general direction is therefore westwards from their origin. They advance with varying velocities. Weak cyclones move at the speed of about 32km per hour while hurricanes attain the velocity of 180km per hour or more.