Biology General Knowledge Quiz Answers – Science Questions – GK Quiz part 14


Biology Answers – Science Questions – part 14


Biology General Knowledge Quiz Answers - Science Questions - GK Quiz part 14



Biology GK Quizzes


1. Which is the first oxygen producing organism?

Answer: Autotrophic cyanobacteria


2. How much biosphere extends to the distance?

Answer: 22.5 Km


3. How the populations of different species are is kept under check?

Answer: By food chain


4. Who is the most recent and most highly evolved amongst organisms?

Answer: Human species, Homo sapiens


5. What two special characteristics are found in human beings which have made them masters?

Answer: Highly evolved brain, skilled hand


6. What is nebula?

Answer: It is the name of cold cosmic cloud of dust and gas which is believed to condense and form star, planets and their satellites


7. Who first put forward the nebular hypothesis of origin of solar system?

Answer: Kant


8. What helped in forming different types of organic compounds on earth from inorganic salts, minerals and gases in beginning?

Answer: High temperature, ultra-violet rays and lightning


9. Who first proposed that life originated from non-living substances through chemical processes?

Answer: Oparin


10. What is the name of the theory that believes life originated from inorganic substances through chemical processes?

Answer: Physico-chemical theory/ Naturalistic theory/ Theory of Chemosynthetic origin


11. Why were the first organisms an aerobic?

Answer: The atmosphere of the earth did not possess oxygen at that time


12. When did prokaryotes originate on earth?

Answer: 4200 million years back


13. When in the of earth did eukaryotes develop?

Answer: 1600-million years back


14. What four features constitute the basic unity of all living beings?

Answer: Cell structure, metabolism, replication and homeostasis


15. Which is the smallest angiosperm?

Answer: Wolffia arrhiza


Online Questions


16. What peculiarity is found in cicada?

Answer: It lives for seventeen years but leads an active life of only five weeks.


17. What are the three components of earth?

Answer: Hydrosphere, Lithosphere, Atmosphere


18. What is the name of the theory which believes that life originated somewhere else and it came to earth through meteorites?

Answer: Cosmozoic or interplanetary theory


19. What discovery formed the basis of agriculture?

Answer: Seeds are the source of replenishment of plants


20. What is the major role of reproduction in nature?

Answer: Perpetuation of the race


21. What is the common name of Agaricus?

Answer: Mushroom


22. What is the name of the fruit body of polyporus?

Answer: Basidiocarp


23. What are Fronds?

Answer: The pinnately compound leaves of fern are called fronds


24. What is Agrostology?

Answer: The study of grasses is called Agrostology


25. Plants that grow in water are called hydrophytes. What name is given to plants that grow in desert conditions?

Answer: Xerophytes


26. What is cambium?

Answer: Elongated cells in between xylem a d phloem in dicot plants constitute cambium


27. What is the name of the process of photosynthesis – constructive or destructive?

Answer: Constructive


28. Which gas is evolved during photosynthesis?

Answer: Oxygen


29. Write the name of various medical plants:

Answer: Rauwolfia Serpentina, Vinca Rosea, Cinchona, Foxglove, Black mulberry, Ocimum Sanctum


30. What is the importance of Foxglove?

Answer: For Heart stimulant


Read 120 Biology Questions Answers and General Knowledge > Chemistry Quiz General Knowledge part 13 > Mathematics Quiz Questions with Answers Part 15

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