When and where does reduction division take place in the life cycle of a liverwort, a moss, a fern, a gymnosperm and an angiosperm?

Where does the implantation and development of the embryo take place ?

What is triple fusion? Where and how does it take place? Name the nuclei involved in triple fusion

A few statements describing certain features of reproduction are given below : (i) Gametic fusion takes place (ii) Transfer of genetic material takes place (iii) Reduction division takes place (iv) Progeny have some resemblance with parents Select the options that are true for both asexual and sexual reproduction from the options given below :

Write the necessary conditions for the phenomenon of total internal reflection to take place. How does one account for the brilliance exhibited by a diamond when it is suitably cut ? 5