Multiple Choice QuestionsThe term 'alpha diversity' refers to
genetic diversity
community and ecosystem diversity
species diversity
diversity among the plants
Which one of the following is biological insecticide?
Tiger beetle
Caterpillar
Silkmoth
Mazra poka
Which one of the following diseases is spread by housefly?
Dengue fever
Encephalitis
Filariasis
Typhoid
D.
Typhoid
Typhoid fever is caused by Salmonella typhi. It is a common worldwide illness transmitted by the ingestion of food or water contaminated with the faeces of an infected person, this disease is spread by housefly.
Dengue fever is a mosquito-borne tropical disease caused by the dengue virus. This may include a highfever, headache, vomiting, muscle and joint pains, and a characteristic skin rash.
Encephalitis is inflammation of the brain. It is mainly caused by viral infections. It often causes only mild flu-like signs and symptoms such as a fever or headache or no symptoms at all.
Filariasis is a parasitic disease caused by an infection with roundworms of the Filarioidea type. These are spread by blood-feeding diptera as black flies and mosquitoes. This disease belongs to the group of diseases called helminthiases.
Nutrient enrichment of a lake will cause
eutrophication
stratification
biomagnification
bioaccumulation
The scientific name of Java man is
Homo habilis
Homo sapiens neandarthalensis
Homo erectus erects
Australopithecus bisei
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