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2a)
Community health is a major field of study within the medical and clinical sciences which focuses on the maintenance, protection and improvement of the health status of population groups and communities as opposed to the health of individual patients.
2b)
i) having fun – being serious,
ii) trying – mastering,
iii) getting support – feeling independent
iv) student – professional identity.

3)Four factors
i)Heredity: Heredity and genes certainly play an important role in the transmission of physical and social characteristics from parents to off-springs.
ii)s**x: s**x is a very important factor which influences human growth and development.
iii)Socioeconomic: Socioeconomic factors definitely have some affect.
iv) Nutritional: Growth is directly related with nutrition. The human body requires an adequate supply of calories for its normal growth and this need of requirements vary with the phase of development.

4)
Digestion is the breakdown of large insoluble food molecules into small water-soluble food molecules so that they can be absorbed into the watery blood plasma. In certain organisms, these smaller substances are absorbed through the small intestine into the blood stream.

5a)
Mouth is used for chewing
5b)
Gullet is used for transporting food the stomach
5c)
the small intestine helps in absorption of nutrients and minerals from food.
5d)
large intestine is to absorb water from the remaining indigestible food
matter and transmit the useless waste material from the body.

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