Question

1. Write the characteristics of subkingdom phanerogams.
2.Distinguish between monocots and dicots.

Answer 1

Those plants that bear flower and fruits after their maturity are called phanerogams. So mostly, they reproduce sexually.

General classification and characters of Phanerogams:

Gymnosperms:

They contain naked seed. They do not bear true fruit.They contain cone instead of flower.The cones are mostly unisexual. Therefore, cross-pollination occurs in gymnosperms.Plants are shrubs or trees. Herbs are absent.They are terrestrial in habitat and are mostly found on dry land.E.g. Pinus, Cycus






Angiosperm:

They contain seed enclosed in seed coat and contain true fruit.They contain both unisexual and bisexual flowers. Therefore, both cross-pollination and self-pollination are possible.It is the largest division of plants that contain wide diversity of plants.

Answer 2

Ans1. ●  the plant body is seprophytic and deffrentiated into true stem ,roots and leaves. ●Vascular organs are present. ●sorgans are well developed and multicellular.  Ans2. Monocot ■  The seeds contain one cotyledon. ■ the leaves posses parallel venation  ■ vascular bundles are scattered. ■ vessels are rouded in out line. ■A combium is absent.  Dicots  ●.two cotyledons  ● flower are generally pentamerous or tetramerous. ●pollen grains have 3 germ pores. ● leaves posses reticulate veriation ● vessels are polygonal in outline    I hope  its help u !!!!!!