1.  Mutualism

2.  Intraspecific competition

3.  Interspecific competition

4.  Predation on one another

4
Correct Answer :

Intraspecific competition


Explanation :
No Explanation available for this question

1.  Sugarcane and sunflower

2.  Teak and pine

3.  Deodar and fern

4.  Wheat and maiden hair fern

4
Correct Answer :

Teak and pine


Explanation :
No Explanation available for this question

1.  Floating ribs—2 pairs

2.  Collar bones—3 pairs

3.  Salivary glands—1 pair

4.  Cranial nerves—10 pairs

4
Correct Answer :

Collar bones—3 pairs


Explanation :
No Explanation available for this question

1.  Constriction of skin blood vessels and contraction of skeletal muscles when it is too cold

2.  Secretion of tears after falling of sand particles into the eye

3.  Salivation of mouth at the sight of delicious food

4.  Secretion of sweat glands and constriction of skin blood vessels when it is too hot

4
Correct Answer :

Constriction of skin blood vessels and contraction of skeletal muscles when it is too cold


Explanation :
No Explanation available for this question

1.  White blood cells

2.  Unstriated muscle cells

3.  Liver cells

4.  Red blood cells

4
Correct Answer :

Red blood cells


Explanation :
No Explanation available for this question

1.  Thyroxin

2.  Adrenaline

3.  Glucagon

4.  Gastrin

4
Correct Answer :

Adrenaline


Explanation :
No Explanation available for this question

1.  certain fungi

2.  certain types of bacteria

3.  all viruses

4.  most virus-infected cells

4
Correct Answer :

certain types of bacteria


Explanation :
No Explanation available for this question

1.  First negative,then positive and again back to negative

2.  First positive,then negative and continue to be negative

3.  First negative,then positive and continue to be positive

4.  First positive,then negative and again back to positive

4
Correct Answer :

First negative,then positive and again back to negative


Explanation :
No Explanation available for this question

1.  phosphorus and sulphur

2.  sulphur and magnesium

3.  magnesium and sodium

4.  calcium and phosphorus

4
Correct Answer :

phosphorus and sulphur


Explanation :
No Explanation available for this question

1.  more sodium in his urine

2.  less amino acids in his urine

3.  more glucose in his blood

4.  less urea in his urine

4
Correct Answer :

more sodium in his urine


Explanation :
No Explanation available for this question

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