11. Reynold numbers define the ratio of inertial to viscous forces A. True B. B.
ID: 153777 • Letter: 1
Question
11. Reynold numbers define the ratio of inertial to viscous forces A. True B. B. False 12. Select the right answer Invertebrates present only in: A) Air, B) Water C) Land, D) in A,B,C 13. Mobility for animals is easy in: A) low viscous medium, B) High viscous medium Life originated from : A) Existing life, B) Abiotic(from some chemical combination) 14. 15. Life originated roughly: 3000 years ago, B) 3 millions 3)3 billions years 16. Miller-Urey experiment was related to: A) Photosynthesis, B) Origin of life, C) 17. Gases used in Miller-Urey experiment were CH4 and NH3 ago(select the right answer) Lipid synthesis (select the right answer) A. True B. False 18, Main products obtained in Miller-Urey experiment 19. Name 3 theories of origin of life 20 Fossil evidence of origin of life is available from 4.5 billions old stromatolite A) Amino acids, B) Sugars, C. A, B (select the right answer) 23. fossil rocks A) True, B) False. 21. Cold conditions, electrical spark, and certain gases were required for origin of A)True, B) False 22. Spanspermia theory of origin of life says 23. RNA first theory mean RNA originated first compared to DNA A) True, B) False 24. Deep sea vents were probable locations for assembly of prototype biomolecules (A)True, B) False 25. Origin of life was proved to some extent with scientific theories and experimentation A) True, B) False.Explanation / Answer
ANSWER-
11. Reynold number define the ratio of inertial to viscous forcE -TRUE.
12. Invertebrates present only in d. A,B and C.
13. Mobility for animals is easy in B. High viscous medium.
14. life originated from abiotic(from some chemical combination).
15.life originated roughly : 3 billion years ago.
16. Milley urey experiment was related to B) Origin of life.
17. gases used in miller urey experiment were CH4 and NH3:TRUE.
18. MAIN PRODUCTS OBTAINED IN MILLER UREY EXPERIMENT :aminoacids.
19. 3 theories of origin of life-
a. it started with an electric spark.
b. molecules of life met on clay
c. life began at deep sea events.
20. Fossil evidence of origin of life is available from 4.5 billion old stromatolites fossil rocks .true
22. says that seeds of life exist evrywhere around in the universe.
23. TRUE
RNA first originates than DNA and can take the task of both enzymes and DNA.
24. true.
25. true.
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