1.  GA

2.  Ethylene

3.  Maleic hydrazide

4.  2, 4, 5-T

4
Correct Answer :

GA


Explanation :
No Explanation available for this question

1.  increase in chromosome number of 21st pair

2.  decrease in chromosome number of 21st pair

3.  increase in chromosome number of 18th pair

4.  decrease in chromosome number of 18th pair

4
Correct Answer :

increase in chromosome number of 21st pair


Explanation :
No Explanation available for this question

1.  A proprioceptor

2.  A hair cell

3.  A menchanoreceptor

4.  A muscle spindle

4
Correct Answer :

A proprioceptor


Explanation :
No Explanation available for this question

1.  Nerves are living

2.  Electricity provides a shock

3.  Nerve impulse is self generated on stimulation and propagated

4.  All the above

4
Correct Answer :

Nerve impulse is self generated on stimulation and propagated


Explanation :
No Explanation available for this question

1.  CNS

2.  ANS

3.  PNS

4.  Spinal cord

4
Correct Answer :

ANS


Explanation :
No Explanation available for this question

1.  Diffusion of sodium ions into the neuron

2.  Diffusion of sodium ions out of the neuron

3.  Diffusion of potassium ions out of the neuron

4.  Diffusion of potassium ions into the neuron

4
Correct Answer :

Diffusion of sodium ions into the neuron


Explanation :
No Explanation available for this question

1.  algae and cyoanobacteria that also live in the aphotic zone

2.  algae and cyoanobacteria that live in the photic zone

3.  decomposers

4.  minerals found on the ocean bottom

4
Correct Answer :

algae and cyoanobacteria that live in the photic zone


Explanation :
No Explanation available for this question

1.  33%

2.  45%

3.  67%

4.  51%

4
Correct Answer :

67\%


Explanation :
No Explanation available for this question

1.  1952

2.  1963

3.  1972

4.  1988

4
Correct Answer :

1972


Explanation :
No Explanation available for this question

1.  terrace tillage

2.  reduced tillage

3.  no tillage

4.   Both (b)and(c)

4
Correct Answer :

Both (b)and(c)


Explanation :
No Explanation available for this question

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