__________ is essential for the formation of hemoglobin.

A: Calcium

B: Iron

C: Water

D: Carbohydrates

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Iron

Out of 92 naturally occurring chemical elements how many are considered as bio-elements?

A: 6

B: 16

C: 26

D: 15

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16

___________ are needed as a source of energy for the vital activities of the body?

A: Calcium

B: Iron

C: Water

D: Carbohydrates

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Carbohydrates

About __________ of the body weight of a mammal is water ?

A: 60%

B: 65%

C: 70%

D: 75%

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70%

The study of fossils is called?

A: Environmental Biology

B: Historical biology

C: Palaeontology

D: Social biology

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Palaeontology

Robert Hooke discovered_____________?

A: Nucleus

B: Mitochondria

C: Cell

D: DNA

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Cell

Steps Involved in scienti¬c method are ?

A: Hypothesis >Accumulated data > observation & experimentation > conclusion

B: New data > Conclusion > Accumulated data > Observation & experimentation

C: Accumulated data > New data Observation & experimentation Hypothesis > Conclusion

D: Accumulated data > Hypothesis > Observation & experimentation > New data > Conclusion

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Accumulated data > Hypothesis > Observation & experimentation > New data > Conclusion

Malaria is associated with___________?

A: Culex Mosquito

B: Culiesta Mosquito

C: Anopheles Mosquito

D: Culex & Anopheles Mosquito

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Anopheles Mosquito

Biologist ˜Grass discovered the life cycle of plasmodium in_______?

A: 1896

B: 1897

C: 1898

D: 1899

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1898

The ¬rst antibiotic to be discovered was_____________?

A: Penicillin

B: Cephalosporin

C: Amino glycosides

D: Erythromycin

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Penicillin

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