000			00686naa a2200169Ia 4500
008			200107s2009 xx 000 0 und d
020			_a978-0-19-915270-4
082			_a574 _bK41
083			_a574 K41
099			_a344
100			_aKent, Michael
245	1	0	_aA2 biology for AQA.
264			_aNew York _bOxford University Press, Inc., _c2009.
300			_a271
520			_aCovers the subject contents how living organisms form ecosystems through which energy is transferred and chemical elements are cycled, how human activity affects the ecological balance in a variety of ways and how genetic variation and isolation may lead to the formation of new species.
942			_2ddc _cBK
999			_c344 _d344