Biology
General
Easy

Question

Organisms which obtain energy by the oxidation of reduced inorganic compounds are called:

  1. saprozoic    
  2. chemoautotrophs    
  3. photoautotrophs    
  4. coproheterotrophs    

The correct answer is: chemoautotrophs

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Finding of Miller's experiment on origin of life has provided evidence for:

   

Finding of Miller's experiment on origin of life has provided evidence for:

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The number of codons that code different amino acids is -

   

The number of codons that code different amino acids is -

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Assertion (A):If a>0,b>0 and c>0, then (a+b+c)(1a+1b+1c)9Reason (R): For positive numbers a, b, c, AMGM

AMGM=1a+1b+1c3111--b¯a.c(1)D:x2-3x-4<0(x+1)(x-4)<01<x<4x2-3x+2>0Rejectx-2)(x-1)>0=x<1arx>2(a+b+c)3(abc)13(2)multiply (1) and (2)  

Assertion (A):If a>0,b>0 and c>0, then (a+b+c)(1a+1b+1c)9Reason (R): For positive numbers a, b, c, AMGM

maths-General
AMGM=1a+1b+1c3111--b¯a.c(1)D:x2-3x-4<0(x+1)(x-4)<01<x<4x2-3x+2>0Rejectx-2)(x-1)>0=x<1arx>2(a+b+c)3(abc)13(2)multiply (1) and (2)  
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The length of the chord joining the points (4cosθ, 4sinθ) and (4cosθ+60°, 4sin(θ+60°)of the circle x2+y2=16 is

   

The length of the chord joining the points (4cosθ, 4sinθ) and (4cosθ+60°, 4sin(θ+60°)of the circle x2+y2=16 is

maths-General
   
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In an orbital motion, the angular momentum vector is

In an orbital motion, the angular momentum vector is

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If the two curves y equals x to the power of 2 end exponent plus 1 and x to the power of 2 end exponent plus y to the power of 2 end exponent equals 1 touch each other at (0,1) then the equation of the common tangent is


If the two curves y equals x to the power of 2 end exponent plus 1 and x to the power of 2 end exponent plus y to the power of 2 end exponent equals 1 touch each other at (0,1) then the equation of the common tangent is

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At (1,1), the two curves x to the power of 3 end exponent y equals 1 and y equals e to the power of 3 open parentheses 1 minus x close parentheses end exponent


At (1,1), the two curves x to the power of 3 end exponent y equals 1 and y equals e to the power of 3 open parentheses 1 minus x close parentheses end exponent

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The slope of the curve y equals k open parentheses 2 x minus 1 close parentheses to the power of 2 end exponent at open parentheses 1 comma fraction numerator 1 over denominator 4 end fraction close parentheses is 1, then k is

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_________ is isostructrual with diamond

_________ is isostructrual with diamond

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Observe the following statements and choose correct answer Statement-I:A particle p moves along a straight line, starting from a fixed point ‘O’, obeying s=16+48t-t3.the direction of p when t=5 is along OP¯ Statement-II: For a particle moving on a line, if velocity v<0 then the body moves towards the initial point.

Statement -I:    

Observe the following statements and choose correct answer Statement-I:A particle p moves along a straight line, starting from a fixed point ‘O’, obeying s=16+48t-t3.the direction of p when t=5 is along OP¯ Statement-II: For a particle moving on a line, if velocity v<0 then the body moves towards the initial point.

maths-General
Statement -I:    
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maths-

Statement ‐ I : The equation zz¯+a¯z+az¯+λ=0 where a is a complex number, represents a circle in Argand plane if λ is real. Statement ‐II : The radius of the circle zz¯+a¯z+az¯+λ=0 is λ-aa¯

Result    

Statement ‐ I : The equation zz¯+a¯z+az¯+λ=0 where a is a complex number, represents a circle in Argand plane if λ is real. Statement ‐II : The radius of the circle zz¯+a¯z+az¯+λ=0 is λ-aa¯

maths-General
Result    
General
GeneralVideo

Divide the following fractions:
2 over 11 divided by 9 over 22

Here, we have to divide the given fractions.
Now, 2/11 ÷ 9/22
= 2/11 × 22/9
= 2/1 × 2/9
= 2 × 2 / 1 × 9
= 4/9
Hence, the correct option is (a).

Divide the following fractions:
2 over 11 divided by 9 over 22

GeneralGeneral
Here, we have to divide the given fractions.
Now, 2/11 ÷ 9/22
= 2/11 × 22/9
= 2/1 × 2/9
= 2 × 2 / 1 × 9
= 4/9
Hence, the correct option is (a).
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The third cleavage in frog's development is

The third cleavage in frog's development is

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The reason why the right kidney is slightly lower than the left is:

Excretion involves the processes in which substances of no further use or those present in excess qualities are thrown out of the body.

The reason why the right kidney is slightly lower than the left is:

biologyGeneral
Excretion involves the processes in which substances of no further use or those present in excess qualities are thrown out of the body.
General
Chemistry-

Consider the following boron halides
I) B F subscript 3 end subscript
II) B C l subscript 3 end subscript
III) B B r subscript 3 end subscript
IV) B l subscript 3 end subscript
The Lewis acid characters of these halides are such that

Consider the following boron halides
I) B F subscript 3 end subscript
II) B C l subscript 3 end subscript
III) B B r subscript 3 end subscript
IV) B l subscript 3 end subscript
The Lewis acid characters of these halides are such that

Chemistry-General
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