Write note on any three of the following: each with two to three important points:

Write notes on any three of the following each write two to three important points. (a) Net primary productivity (b) Morphological adaptations in xerophytes (c ) Layering (d) Pollen-pistil interaction (e ) Tertiary treatment of sewage water ,br> (f) Transcription unit

Write notes on any three of the following, each with two to three important points Limnetic zone

Write notes on any three of the following, each with two to three important points Aminoacylation

Write notes on any three of the following each with 2 to 3 important points : tRNA

Write notes on any three of the following, each with 2 to 3 important points Linkage

Write note on any three of the following: each with two to three important points: Inoculation

Write notes on any three of the following each with two to three important points: Sedimentary cycle

Write notes on any three of the following, each with two to three important points Helobial endosperm

Write notes on any three of the following, each with 2 to 3 important points Agrochemicals