Question

Name the basic unit in classification.define it

Answer 1

Basic unit of classification is species.Species is defined as group of organisms that have common specific characteristics which differentiate them from others.

Answer 2

Your answer -

  

State of feeling discomfort or disability is known as Disease.  

On the basis of duration, Disease are classified into two groups.

 1.  - Disease which appears for short period is known as Acute Disease. e.g; - Common Cold  

2.  -  Disease which continues for long time or sometimes throughout the life of an individual is known as Chronic Disease. e.g; - Filariasis.  

 1.  -  Disease present by birth or inherited from parents are known as Congenital Disease.  e.g; - Turner's Syndrome, Klinefelter Syndrome, Alkaptonuria.  

2.  -  Disease acquired during the life cycle of an individual is known as Acquired Disease.  e.g; - Tuberculosis, Cholera, etc.  

 

(a.) -  These diseases are transferred from one person to another.  e.g; - Influenza, Common Cold, Tuberculosis etc.  They are caused by direct or indirect contact. Microorganisms which causes diseases are known as Pathogen.  Pathogens may belong to different species.

i. Bacterial disease - Tuberculosis, cholera, Tetanus, Syphilis, Diphtheria,  Leprosy, Whooping cough, etc.  

ii. Viral Diseases - AIDS, Influenza, Common Cold, Rabies, Hepatitis, etc.  

iii. Protozoan Disease - Amoebiasis, Leishmaniasis (Kala azar), Malaria etc.  

iv. Helminthic Disease - Filariasis (Elephantiasis), Helminthiasis, etc.  

v. Fungal Diseases - Mycosis, Athelete's foot, Ringworm, skin infections etc.

 (b) Non - Communicable Diseases - These diseases can not be transferred from one person to another person.  

i. Deficiency Diseases - Beri - Beri (Vitamin B1 deficiency disease), Survey ( Vitamin C deficiency disease), Kwashiorkor and Marasmus (Protein - Energy malnutrition disease), etc.  

ii. Cancer - Cancer is also a non - Communicable Disease.  

iii. Injury or Physical damage - it makes discomfort so, it can be also considered as a type of disease.  

Thanks !!!