(i) List three characteristics of living organisms. (ii) Explain briefly the characteristics listed in 1(a)(i) above

1(a)(i) List three characteristics of living organisms. (ii) Explain briefly the characteristics listed in 1(a)(i) above

1(a)(i) Characteristics of Living Organisms: Movement/Locomotion, Excretion, Respiration, Reproduction, Irritability/Sensitivity/Response, Growth/Development, Nutrition/Feeding, Competition, Adaptation

(ii) MOVEMENT: Living things change position of the whole body/parts of the body, from one place to another in search of food/shelter/mates etc. EXCRETION: involves the removal/getting rid of waste products of cell metabolism, metabolic waste are poisonous if allowed to accumulate. RESPIRATION: This is the breakdown/burning of food substance, by aerobic/anaerobic respiration, to release energy need for all processes of life. REPRODUCTION: This is the ability of living organisms to produce new individual of their own kind, this ensures the continuity of the species of organisms. IRRITABILITY: Response/reaction of organism, towards change in the environment to ensure survival. NUTRITION: the process involved in obtaining/manufacturing food, can be autotrophic/heterotrophic and utilizing it for growth and maintenance/life process. GROWTH: This is the irreversible increase in size and weight of an organism which leads to complexity and maturation. COMPETITION: Ability of organism to struggle for all necessity of life, to survive in their environment. ADAPTATION: Ability of organisms to adjust to change in environment for survival. LIFESPAN/DEATH: All living organisms have definite period of existence, all organisms die.

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