Question

Two plants can be conclusively said to belong
to the same species if they
(a) have more than 90 per cent similar genes
(b) look similar and possess identical secondary
metabolites
(c) have same number of chromosomes
(d) can reproduce freely with each other and
form seeds

Answer 1

Two plants can be conclusively said to belong to the same species if they can be reproduce freely with each other and form seeds. Species is a natural population of individuals or group of populations which resemble one another in all essential morphological (i.e., body form, size, shape, etc.) and reproductive characters so that they are able to interbreed freely and produce fertile offsprings.  A species can be easily distinguished from other closely related species on the basis of their distinct morphological differences

So, the correct answer is 'C an reproduce freely with each other and form seeds

Answer 2

Answer:

Two plants can be conclusively said to belong

to the same species if they have same number of chromosomes