Water
Hydrogen present in soil
Hydrogen sulphate
Hydrogen sulphide
✅ The correct answer is option D.
Biology MCQs
The word Archaeobacteria (a division of bacteria) derived from Greek means
True bacteria
False bacteria
Recent bacteria
Ancient bacteria
✅ The correct answer is option D.
The total area of the world under cultivation is
5%
11%
21%
31%
✅ The correct answer is option B.
Prokaryotes are considered to be evolved
3.5 billion years ago
1.5 billion years ago
4.5 billion years ago
1000 million years ago
✅ The correct answer is option A.
Who coined the term Animalcules for microorganisms like Bacteria and protozoa?
Robert Koch
Louis Pasteur
Alexander Fleming
Leeuwenhoek
✅ The correct answer is option D.
Wildlife refers to
All plants of the world
All non-cultivated plants
Nondomesticated animals
Both B and C
✅ The correct answer is option D.
Flagella might have arisen through the ingestion of
Cyano-bacteria
Spirochetes
Chlamydomonas
Paramecium
✅ The correct answer is option B.
Who discovered the bacteria causing tuberculosis and also developed various techniques of media preparation and maintenance of pure culture?
Robert Koch
Louis Pasteur
Alexander Fleming
Leeuwenhoek
✅ The correct answer is option A.
Endangered species are
Dangerous for the life of humans
Reduced in number
Already extinct
All of these
✅ The correct answer is option B.
Important point/s of Lamarck’s theory
Use and disuse of organs
Inheritance of acquired characters
Natural selection
Both a and b
✅ The correct answer is option D.