Biology derived from the greek language, "Bios" wich means life and "Logos" wich means science. so Bilogy is the natural science that studies life and living oganisms including their physical structure, chemical composition, fungtion, development and evolution. many aproaches can be used to study biology. we can learn theorytically the origin of life, that will bring us also on the issue whether there were life in planet-planet another in our solar system.
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which is the object of study biology are all living thing, which are said to be living thing have charactheristics among other composed by cells, experiencing growth and development, perform metabolic processes, respond to stimulation, doing reproduction and able to adapt to the enviropment.
COMPOSED BY CELLS
Cells are the smallest unit that shows all the properties asociated with life, cell size range from 5-15 micron. the arrangement or structure of cells is devided into three main section among other the plasma membrane, the cytoplasm and nucleus. Brown (1831) suggested that cell a small space bounded by a membrane, in wich there is liquid (protoplasm).
EXPERIENCING GROWTH AND DEVELOPMENT
Growth its a procces of increasing in body size includes the height, weight, and the volume of a body is irreversible (unable to return to is original form). development is a biological process of living things to the level of maturity can be changes in shape, structure and the function of organs to maturity/perfection.
PERFORM METABOLIC PROCESSES
All chemical and energy changes that occur within the cell of a living thing or beacuse its activity is metabolized. metabolism is devided into 2 (two) phases that is catabolism or degradative phases ( the process of decomposition a subtance into smaller particles to be converted into energy ) and anabolism or constituent phases ( the process of preparing organic compounds form certain molecules to be absorbed by body).
RESPOND TO STIMULATION
Sensitivity to this stimulus is also known as irritability, stumuli can come form outside and within animal or plant, stimulation that comes in animal or plants from the oustdide can be temperature, light, touch, water, sound, smell or food, while stimuli form within for example, such as desire to drink etc. in organ animals that function senstive to stimuli are nervous system, sensory devices, motion tool, whereas in plants there areno special organs, but plants have the ability to react to external stimuli.
DOING REPRODUCTION
Reproduction is the biological process of an individual to produce a new individual. this reproduction is also commonly called the breed, usually this reproduction aims to defend themselves and one way to defend their offspring. all living things do their reproductive process in ordr to produce a next generation and not extinction, the process of reproduction of every living being is very different.
ABLE TO ADAPT TO ENVIROPMENT
able to adapt to enviropment is a living being able to survive in the environment in habited/occupied, living creatures are equipped with the ability to adjust to their environment these adjustments are called adaptation. living things must be able to adapt in order to survive. living things that can not adapt will be easily extinct. living things will live in their own habitats. habitat fish in ponds, river and so forth. it is impossible for fish live on a land. all types of living things will adjust to their respective habitats, if the curren habitats its vulnerable and does not have enough food reserves, living things will move.
EXPERIENCING GROWTH AND DEVELOPMENT
Growth its a procces of increasing in body size includes the height, weight, and the volume of a body is irreversible (unable to return to is original form). development is a biological process of living things to the level of maturity can be changes in shape, structure and the function of organs to maturity/perfection.
PERFORM METABOLIC PROCESSES
All chemical and energy changes that occur within the cell of a living thing or beacuse its activity is metabolized. metabolism is devided into 2 (two) phases that is catabolism or degradative phases ( the process of decomposition a subtance into smaller particles to be converted into energy ) and anabolism or constituent phases ( the process of preparing organic compounds form certain molecules to be absorbed by body).
RESPOND TO STIMULATION
Sensitivity to this stimulus is also known as irritability, stumuli can come form outside and within animal or plant, stimulation that comes in animal or plants from the oustdide can be temperature, light, touch, water, sound, smell or food, while stimuli form within for example, such as desire to drink etc. in organ animals that function senstive to stimuli are nervous system, sensory devices, motion tool, whereas in plants there areno special organs, but plants have the ability to react to external stimuli.
DOING REPRODUCTION
Reproduction is the biological process of an individual to produce a new individual. this reproduction is also commonly called the breed, usually this reproduction aims to defend themselves and one way to defend their offspring. all living things do their reproductive process in ordr to produce a next generation and not extinction, the process of reproduction of every living being is very different.
ABLE TO ADAPT TO ENVIROPMENT
able to adapt to enviropment is a living being able to survive in the environment in habited/occupied, living creatures are equipped with the ability to adjust to their environment these adjustments are called adaptation. living things must be able to adapt in order to survive. living things that can not adapt will be easily extinct. living things will live in their own habitats. habitat fish in ponds, river and so forth. it is impossible for fish live on a land. all types of living things will adjust to their respective habitats, if the curren habitats its vulnerable and does not have enough food reserves, living things will move.
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