Bio the characteristic of living things

7 PROCESSES OF LIFE

Movement, Reproduction ,Sensitivity, Nutrition, Excretion, Respiration, Growth 

1.MOVEMENT 

 Animals – by muscles 

2.REPRODUCTION 

= production of offsprings -Sexual reproduction - gametes,Asexual reproduction 

Life cycle

the series of events from the time an organism reproduces to the time its offsprings reproduce 

3.SENSITIVITY 

responding to stimuli (1 stimulus), Stimulus – receptor - response 

4. NUTRITION 

The process by which an organism uses food to support its life

Ingestion

consumption – the process of taking food into the body through the mouth 

Digestion

the process of breaking down food by mechanical and enzymatic action in the stomach and intestines  

Egestion

defecation - the final act of digestion – the removal of undigested food from the body in the form of faeces 

Metabolism

the chemical processes that occur within a living organism in order to maintain life

5.EXCRETION 

the getting rid of poisonous substances

6.RESPIRATION 

Oxygen is required  – different ways of getting it

7.GROWTH 

mass and volume increasing

Autotrophs 

make their own organic food, Photosynthesis, chemosynthesis  

Heterotrophs

required ready-made organic food 

types of heterotrophs

1. Herbivores 

2. Carnivores 

3. Omnivores 

4. Parasites 

5. Saprothrops 

Assimilation  

the conversion of nutrients into living tissue