Addasiad Cymraeg o ganllaw gwerthfawr i'r cwrs Lefel A Uwch Gyfrannol Bioleg a luniwyd gan yr awdures, athrawes ac arholwraig brofiadol Marianne Izen. Bydd y dyluniad gweledol deniadol yn sicr o gynorthwyo a chefnogi myfyrwyr wrth iddynt baratoi ar gyfer eu arholiadau.
A Welsh adaptation of a valuable Biology AS course guide written by experienced author, teacher and examiner Marianne Izen. The book's engaging visual style and comprehensive detail will assist and support students prepare for their exams.
