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Biology

Biology
Which of the following is not an Endocrine Gland?

Spleen
Adrenal
Pituitary
Thyroid

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Biology
In 1910, who proved the idea of W.S.Sutton that genes are located on chromosomes?

De Duve
T.H.Morgan
Palade
Waldeyer

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Biology
AIDS is caused by the Human Immunodeficiency Virus (HIV). The transmission of HIV infection generally occurs through

Transfusion of contaminated blood and blood products
Shaking hand with infected person
Eating contaminated food and water
Inhaling polluted air

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Biology
Which of the following organisms fix nitrogen in aquatic ecosystems

Cyanobacteria
Fungi
Phytoplankton
Chemoautotrophs

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Biology
Octopus belongs to the phylum

Chordata
Echinodermata
Mollusca
Cnidaria

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Biology
Which type of permanent tissue helps the aquatic plants to float?

Aerenchyma
Sclerenchyma
Collenchyma
No option is correct

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