Biology
Define:
(a) Health
(b) Hygiene
(c) Pathogen/germ
(d) Vector
(e) Contamination
Hygiene
216 Likes
Answer
(a) Health is the condition of the body of a person who depicts or portrays physical, mental, social and emotional fitness.
(b) Hygiene is defined as the science and practice of maintaining good health. It requires caring of one's own body (personal hygiene) and taking proper care of surroundings (social hygiene).
(c) The disease causing organisms are called pathogens or germs.
(d) Vector is any agent that acts as an intermediate carrier of a pathogen.
(e) Contamination means unwanted entry of disease causing germs into drinking water or edible foods.
Answered By
139 Likes
Related Questions
Name the following :
(a) The bacterium which causes cholera.
(b) The liquid domestic wastes from the kitchen, toilet, etc.
(c) The chemical substances used to kill rats.
(d) The disease caused due to the inflammation of liver.
(e) The disease caused due to the bacilli bacteria released in tannery wastes from leather industries.
Complete the blanks in the table given below:
DISEASE PATHOGEN VECTOR Malaria Plasmodium 1 mosquito 2 3 Culex mosquito 4 Virus 5 mosquito Give suitable explanations for the following:
(i) One should breathe by nose and never by mouth.
(ii) Hands must be washed before eating food.
(iii) Eating places must be kept free of flies.
How are cockroaches and rats harmful to humans?