Question

(i) Name the process and explain it.
(ii) Mention the agent involved in the above process.
(iii) What is 'Double Fertilisation'?
IV) Define the term 'Inflorescence'.
12-10
(v) Draw a neat, labelled diagram of a carpel.
(b) Answer the following questions briefly:
(i)
List any two activities of WHO.
(ii) Write a balanced equation to represent anaerobic respiration in plants.
(iii) Mention two functions of the human skin.
(iv) Name the two membranes covering the lungs.
(v) Give two examples of Amphibians.​

Answer 1

Answer:

when smell, heat, and food are gone, the prisoners, “tarred” with stigmatic secretion and “feathered” with pollen, are allowed to escape by a wilting of the inflorescence (flower cluster). Usually the escaped flies are soon recaught by another inflorescence, which is still in the smelly, receptive stage, and cross-pollination again ensues. Superb timing mechanisms underlie these events. The heat-generating metabolic process in the inflorescence is triggered by a hormone, calorigen, originating in the male flower buds only under the right conditions. The giant inflorescences of the tropical plant Amorphophallus titanum similarly trap large carrion beetles