Biology Biology A Level(Form Six) Biology Notes

BIOLOGY A LEVEL(FORM SIX) NOTES – ECOLOGY

ECOLOGYEcology is a scientific study of relationship of organism with their natural surroundingsORIs the study of relationships of living organisms to each other and their

Biology Biology A Level(Form Six) Biology Notes

BIOLOGY A LEVEL(FORM SIX) NOTES – REPRODUCTION 1

REPRODUCTIONIs the ability of an organism to produce an individual of its type in order to increase the number of individuals of that species.MEANS OR

Biology Biology A Level(Form Six) Biology Notes

BIOLOGY A LEVEL(FORM SIX) NOTES – TRANSPORTATION

TRANSPORTATIONTRANSPORTATION OF MATERIALS IN LIVING ORGANISMWhy is there a need of special transport system?Answers: Over short distances, means of transport are rapid and efficient ie:

Biology Biology A Level(Form Six) Biology Notes

BIOLOGY A LEVEL(FORM SIX) NOTES – REPRODUCTION 2

SIGNIFICANCE OF MEIOSIS: It insures constant chromosome number to all species which reproduce sexually. This is because during gametes formation. The number of chromosomes is

Biology Biology A Level(Form Six) Biology Notes

BIOLOGY A LEVEL(FORM SIX) NOTES – GENETICS

GENETICSGenetics is the study of heredity and variationHeredity- is the passage of character from one generation to another.Variation – these are differences among individuals of

Biology Biology A Level(Form Six) Biology Notes

BIOLOGY A LEVEL(FORM SIX) NOTES – EVOLUTION

EVOLUTIONORGANIC EVOLUTION.Organic evolution is a gradual change in the genetic composition of organisms in a population during successive generations leading to formation of new species

Biology Biology A Level(Form Six) Biology Notes

BIOLOGY A LEVEL(FORM SIX) NOTES – GROWTH AND DEVELOPMENT

GROWTH AND DEVELOPMENTGrowth is a fundamental characteristic of living organisms.ORGrowth – is defined as an irreversible increase in dry mass of living material.ORGrowth is a