Category: biology

Biology questions all questions KCSE

BIOLOGY TOPICS HIGHLIGHTED Classification I & II………………………………………………………………………..4 The cell – structure & functions of organelles…………………………………….………5 Cell physiology – osmosis, diffusion and active transport………………………………..9 Nutrition in (a) plants (b) animals………………………………………………………13 Transport in (a) plants (b) animals………………………………………………………24 Gaseous exchange in (a) plants (b animals………………………………………………30 Respiration………………………………………………………………………………..34 Excretion and homeostasis………………………………………………………………37 Ecology…………………………………………………………………………………..45 Reproduction in (a) plants (b) animals…………………………………………………53 Growth and …

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IGCSE BIOLOGY TOPIC 21 HUMAN INFLUENCE ON ECOSYSTEM

Food supplyImprovements in farming:With the advancement of technology, new methods of farming have been introduced in orderto maximise yield:● Use of machinery – agricultural machinery can be used in the place of people. This isquicker and more efficient, thus larger amounts of land can be farmed at once.● Chemical fertilisers – fertilisers increase the amount …

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