General Knowledge: Biology Questions Answer GK Quiz

Biology Question Answer 2025, Biology Quiz Questions 2025

Q. The aquatic plant commonly used as biofertilizer in the water-logged rice field is -
1) Lemna
2) Azolla
3) Wolfia
4) Trapa

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Q. The Xylem in plants is responsible for transporting -
1) Water
2) Amino Acid
3) Oxygen
4) Food

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Q. Which of the following factors is the most important factor for the loss of biodiversity?
1) Genetic assimilation
2) Control of predators
3) Destruction of natural habitat
4) Pest control

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Q. Which type of vaccine protects against Diphtheria?
1) Toxoid
2) Live-attenuated
3) mRNA
4) Viral Vector

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Q. Which of the following hor­mones is secreted by the Beta cell of the Islet of Langerhans of the Pancreas?
1) Glucagan
2) Insulin
3) Adrenalin
4) Aldosterone

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Q. In National Parks, Genetic diver­sity is maintained by -
1) In-situ conservation
2) Ex-situ conservation
3) Gene pool
4) None of the above

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Q. Which of the following is not a biodegradable polluter?
1) Domestic waste
2) Urine
3) Faecal matter
4) Pesticide

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Q. Which of the following is largest non-communicable disease in India?
1) Chronic obstructive pul­monary disease (COPD)
2) Cardiovascular Diseases
3) Diabetes
4) Asthma

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Q. What is the outermost layer found in the cell envelope of the bacterial cell called?
1) Glycocalyx
2) Cell membrane
3) Plasma membrane
4) Cytoplasm

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Q. During which of the following period Ostriches were found in India?
1) Mesolithic
2) Chalocolithic
3) Neolithic
4) Palaeolithic

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