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Get Answers to all your Questions
- #Class 11
- #Medical
- #Diversity in Living World
- #Biology
- #National Eligibility Cum Entrance Test
- #National Eligilibility Cum Entrance Test
Sleeping sickness is caused by _____ and is spread by ______
Trypanosoma gambiense; Tsetse fly
Trypanosoma gambiense; Anopheles
Trypanosoma gambiense; House fly
None of these
Answers (1)
Flagellated protozoa:
-
These protozoans are flagellated i.e. they have flagella for locomotion.
-
They can be free-living, parasitic, aquatic etc.
-
Mode of nutrition is holozoic, saprozoic or parasitic.
-
Body possesses a proteinaceous layer pellicle.
-
Reproduction is generally by binary fission.
-
Many organisms falling in this group cause diseases in humans and other animals.
|
|
Organisms |
Disease |
Mode of transmission |
host |
|
1 |
Trypanosoma gambiense |
Gambian sleeping sickness |
Tse-tse fly |
Antelope and human |
|
2 |
T. rhodesiense |
Rhodesian sleeping sickness |
Tse-tse fly |
Humans |
|
3 |
T.cruzi |
South American sleeping sickness |
Triatomine bugs |
Humans |
|
4 |
Leishmania donovani |
Kala-azar |
Sandfly |
Dogs, cats, humans |
|
5 |
Giardia intestinalis |
Giardiasis |
Food and water |
Humans |
|
6 |
Trichomonas vaginalis |
Leucorrhoea |
Sexual intercourse |
Human |
Sleeping sickness is caused by Trypanosoma gambiense and is spread by Tsetse fly
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