(a ) Draw a labelled L.S. view of an albuminous 'seed'·
(b) How are seeds advantageous to flowering plants ?

Explanation

(a) Structure of some Albuminous seeds

(b) Advantages of seeds :
(i ) Seeds posses better adaptive strategies for dispersal to form a new colony.
(ii) The reserve food of seed, supports the growth of seedling tili it becomes nutritionally independent .
(iii) The hard seed coat (testa + tegmen) provides protection against injury.
(iv) They provide genetic re-combination and variation as they are the product of sexual reproduction.
(v) Seeds are stored to be consumed throughout the year to overcome drought and natural calamities.
(vi) Depending upon the mobility of seeds, they are used to raise crop in favorable season.