Related Questions

In a annutal behavior experiment , 50 tagged white pigeons and 200 tagged gray pigeons were released from a laboratory. Within one week, 88 percent of the white pigeons and 80.5 percent of the gray pigeons had returned to the laboratory. what percent of the total number of piegens returned to the laboratory?
A 80.5%
B 82.5%
C 82%
D 85%
Which vitamin is not synthesised in body?
A Vit _A
B Biotin
C Vit _D
D Vit _ K
The first Hydrogen Energy Laboratory is situatedis-
A Chitagine
B Mongla
C Narayanganj
D Dhaka
Read the paragraph and answer the question-photosynthesis is a process in which radiant energy from sun is stored as chemical energy , which in turn is used to decompose carbon dioxide and water. The product of their decomposition are recombined into a new compound which successively builds, up into more and more complex organic substances like sugars, starches and cellulose that comprise the plant.The word stored in the paragraph is closest in morning to
A specified
B retained
C converted
D discovered
কার্বিলঅ্যামিন পরিক্ষার মাধ্যমে কোন ধরনের ‍জৈব যৌগ সনাক্ত করা যায়?(What type of organic compound can be detected by carbylamine test?)
A Primary amine
B Aldehyde
C Amide
D Primary alcohol
By which organic compound all the oils are known ?
A Carbohydrate
B Protein
C Hydrocarbon
D Ester
Which one of the following organic compound is used to remove stains of iron compounds?
A Oxalic acid
B Benzoic acid
C Phthalic acid
D Cinnamic acid
'Synthesis gas' meant for the synthesis of organic compound is a variable mixture of
A N2 & H2
B CO2 & H2
C CO & H2
D C & H2
Govt. Laboratory High School has 10 members in its chess team and 14 members in its science club. Five students at the school belong to both the chess team and the science club. How many students belong to only the chess team?
A 5
B 6
C 7
D 9
P. to relax the vigil against the killer disease Q. for the development of an AIDS vaccine R. is not reason enough S. the on going research due to enter laboratory trails shortly
A PQSR
B QSRP
C SQRP
D SRQP

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