Which is essential for root hair growth

1.  Ca

2.  Zn

3.  Mo

4.  S

View Answer  
4
Correct Answer :

Ca


Explanation :
No Explanation available for this question

Gradual metamorphosis occurs in:

1.  Crow

2.  Cat

3.  Amoeba

4.  Cockroach

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4
Correct Answer :

Cockroach


Explanation :
No Explanation available for this question

Sulphur is an important nutrients for optimum growth and productivity in:

1.  Fibre crops

2.  Oilseed crops

3.  Pulse crops

4.  Cereals

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4
Correct Answer :

Pulse crops


Explanation :
No Explanation available for this question

The young of some insects resemble the adult in general structure but lack the wings and the mature reproductive organs, such a young one is called:

1.  Nymph

2.  Grub

3.  Caterpillar

4.  Maggot

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4
Correct Answer :

Nymph


Explanation :
No Explanation available for this question

The function of leghaemoglobin during biological nitrogen fixation in root nodules of legumes is to:

1.  Convert atmospheric N2 to NH3

2.  Convert ammonia to nitrite

3.  Transport oxygen for activity of nitrogenase

4.  Protect nitrogenase from oxygen

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4
Correct Answer :

Protect nitrogenase from oxygen


Explanation :
No Explanation available for this question

Which species lay eggs in the soil

1.  Anopheles

2.  Aedes

3.  Culex

4.  Both Culex and Anopheles

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4
Correct Answer :

Aedes


Explanation :
No Explanation available for this question

Which disease is transmitted through Culex:

1.  Elephantiasis

2.  Yellow fever

3.  Diphtheria

4.  Malaria.

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4
Correct Answer :

Elephantiasis


Explanation :
No Explanation available for this question

Why male mosquito is unable to pierce the skin of man

1.  Reduced mandibles

2.  Mandibles absent

3.  Antennae short

4.  None of them

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4
Correct Answer :

Mandibles absent


Explanation :
No Explanation available for this question

Anopheles lays eggs on:

1.  Kitchen garbage

2.  Dead bodies of animals

3.  Still water

4.  Cow and hourse dung

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4
Correct Answer :

Still water


Explanation :
No Explanation available for this question

A plant requires magnesium for:

1.  Protein synthesis

2.  Chlorophyll synthesis

3.  Cell wall development

4.   Holding cells together

View Answer  
4
Correct Answer :

Chlorophyll synthesis


Explanation :
No Explanation available for this question
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