Q. The aquatic plant commonly used as biofertilizer in the water-logged rice field is -
1) Lemna
2) Azolla
3) Wolfia
4) Trapa
Q. The Xylem in plants is responsible for transporting -
1) Water
2) Amino Acid
3) Oxygen
4) Food
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
Q. Which type of vaccine protects against Diphtheria?
1) Toxoid
2) Live-attenuated
3) mRNA
4) Viral Vector
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
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
Q. Which of the following is not a biodegradable polluter?
1) Domestic waste
2) Urine
3) Faecal matter
4) Pesticide
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
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
Q. During which of the following period Ostriches were found in India?
1) Mesolithic
2) Chalocolithic
3) Neolithic
4) Palaeolithic
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