Double fertilization was discovered by

The process in which haploid embryo is formed from haploid egg without fertilization is called

When the pollen tube enters through the micropyle, it is termed as

The diagram below shows a fertilised ovule and carpelWhich numbers represent the structures which will become

$(i)$ The future embryo

$(ii)$ The future testa

$(iii)$ The future micropyle of the seeds

$(i) (ii) (iii) $ respectively

Endosperm is the result of