The cephalothorax of the male is coloured black and that of the female is brownish .
The cephalothorax of the male is black in colour and that of the female is brownish .

Are these two sentences paraphrases of each other?
yes

The body is compact with large head , long wings and short tail .
The body is compact with a large head , short wings and long tail .

Are these two sentences paraphrases of each other?
no

Promegestone is only weakly bound to albumin , it does not bind to gender-binding globulin and binds mainly to Transcortin .
Promegestone is mainly bound to albumin , it does not bind to gender-hormone-binding globulin and only weakly binds to Transcortin .

Are these two sentences paraphrases of each other?
no

The music was composed by ONV Kurup and Vayalar Ramavarma and the lyrics by G. Devarajan were written .
The music was composed by G. Devarajan and the lyrics by ONV Kurup and Vayalar Ramavarma were written .

Are these two sentences paraphrases of each other?
no