question_answer

Why all hydrophytes are not pollinated by water?

Or

Name any two hormones and their source organs which are produced only during pregnancy.

Answer:

All hydrophytes are not pollinated by water. Those hydrophytes whose flowers emerge above the surface of water are pollinated by insects or wind, e.g. water hyacinth and water lily are pollinated by insects.

Or

The hormones are

(i) Human Chorionic Gonadotropin (hCG) It is secreted by the placenta.

(ii) Relaxin It is secreted by the ovary.