Describe the structure of young anther.

Briefly describe the structure of diborane.

Describe the structure of the common form of ice.

The pollen grains represent the male gametophytes. Describe the structure of mature pollen grains at released stage in common plants.

Give the formula and describe the structure of A.noble gas species which is isostructural with: a ICl4-

Describe the internal structure of a dorsiventral leaf with the help of a labelled diagrams

Describe the following: Calcination

The diagram given below shows the transverse section of a young anther. Identify the parts a,b,c and d. (b) The developmental stages of male gametes in plants consist of microsporogenesis and male gametophyte. Arrange the following terms in their correct development sequence. Pollen grain Sporogenous tissue Anther Microspore tetrad Pollen mother cell Male gamete

Describe the components of an Ecosystem