Given below is an enlarged view of one microsporangium of a mature anther.

Name 'a', 'b' and 'c' wall layers.

Given below is an enlarged view of one microsporangium of a mature anther. Mention the charcteristics and function of the cells forming wall layer 'c'.

Given below is an enlarged view of one microsporangium of a mature anther. Mention the characteristics and functions of the cells forming wall layer c .

(In T.S. anther, identify a, b and c)

The outermost and innermost wall layers of microsporangium in an anther are respectively:

The outermost and innermost wall layers of micro-sporangium in an anther are respectively.

Given below is the scientific name of Mango. Identify the correctly written name.

Short Answer Questions Three mark Each (a) 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 developmental sequence. Pollen grain Sporogenous tissue Anther Microspore tetrad Pollen mother cell Male gamete.

Given below is a figure of an ecosystem, answer the following questions Name any plant that is characterstic of such ecosystem.

Given below is an incomplete flow chart showing influence of hormones on gametogenesis in males. Observe the flow chart carefully and fill in the blanks A,B,C and D.

Listed below are one of the typical features of certain cells. Name the specific cells in each. cells tapering at the two ends with cell wall consisting lignin