Fertillization is a physicochemical process '. Explain .

Fertilization is a physicochemical process. Explain various changes that take place after fertilization

Why is respiration called a physicochemical process?

Double fertilization is the process in plant that includes:

Fertilization is essential for the production of seed, but in some angiosperms seeds develop without fertilization. (a)Give an example of an angiosperm that produces seeds without fertilization. Name the progress. (b)Explain the two way by which seeds develop without fertilization.

What is double fertilization ? Describe the process giving significance . Add a note on post fertilization changes leading to formation of seed. .

Define double fertilization . Explain the process of double fertilization in an angiosperm plant. Write its importance .

(a) Explain the term self pollination and cross-pollination ? (b) How do the insects help in cross- pollination ? (c) How is the process of pollination different from fertilization ?