CHROMOSOME | THE BASIS OF HEREDITARY
LOCATION AND STRUCTURE OF CHROMOSOMES Chromatin granules (thread – like structures) found in the nucleus of eucaryotic cells are the… Read More »CHROMOSOME | THE BASIS OF HEREDITARY
Biology
THEORIES OF EVOLUTION
ORGANIC EVOLUTION Organic evolution is the sum total of adaptive changes from pre–existing or old forms that has taken place… Read More »THEORIES OF EVOLUTION
ADAPTIVE COLOURATION AND BEHAVIOURAL ADAPTATION
ADAPTIVE COLOURATION This is the possession by an organism of a colour which enables it to catch its prey, avoid… Read More »ADAPTIVE COLOURATION AND BEHAVIOURAL ADAPTATION
ADAPTATION FOR SURVIVAL
COMPETITION Competition is the process by which living organisms in the habitat struggle with one another for limited essential needs… Read More »ADAPTATION FOR SURVIVAL
FRUIT
STRUCTURE OF A FRUIT A fruit is a matured fertilized ovary of a flower containing one or more seeds. Contrary… Read More »FRUIT
GROWTH
Growth is defined as an irreversible increase in volume, size, and number of parts, length and weight of an organism… Read More »GROWTH
BASIC ECOLOGICAL CONCEPT
Ecology This is the study of living organisms (plants and animals) in relation to their environment. Ecology is divided into… Read More »BASIC ECOLOGICAL CONCEPT
MODE OF NUTRITION
Autotrophic Nutrition This is the type of nutrition in which the organisms are able to manufacture their own food. Organisms… Read More »MODE OF NUTRITION
ANIMAL NUTRITION
ANIMAL NUTRITION (FOOD SUBSTANCES) Food is a complex energy-rich organic matter which living organism feed on to obtain nutrients and… Read More »ANIMAL NUTRITION
NUTRIENT CYCLING IN NATURE
Nutrient cycle is defined as the circulation of certain nutrient such as carbon, sulphur and water in nature Carbon Cycle… Read More »NUTRIENT CYCLING IN NATURE