1.  Annelida

2.  Porifera

3.  Acanthocephala

4.  Echinodermata

4
Correct Answer :

Porifera


Explanation :
No Explanation available for this question

1.  Multicellular with a gastrovascular system

2.  Multicellular having tissue organization, but no body cavity

3.  Unicellular or a cellular

4.  Multicellular without any tissue organization

4
Correct Answer :

Multicellular without any tissue organization


Explanation :
No Explanation available for this question

1.  Amoebocytes

2.  Archaeocytes

3.  Choanocytes

4.  Myocytes

4
Correct Answer :

Archaeocytes


Explanation :
No Explanation available for this question

1.  Exclusively marine animal

2.  Exclusively freshwater animal

3.  Mostly freshwater animal but few are marine animals

4.  Mostly marine animals but few are freshwater animals

4
Correct Answer :

Mostly marine animals but few are freshwater animals


Explanation :
No Explanation available for this question

1.  Radial

2.  Bilateral

3.  Spherical

4.  Biradial

4
Correct Answer :

Bilateral


Explanation :
No Explanation available for this question

1.  Body organization

2.  Body plane

3.  Skeleton

4.  Canal system

4
Correct Answer :

Skeleton


Explanation :
No Explanation available for this question

1.  Methane

2.  Chlorofluorocabrons

3.  Nitrogen

4.  Carbon dioxide

4
Correct Answer :

Nitrogen


Explanation :
No Explanation available for this question

1.  Ozone layer depletion

2.  Global warming

3.  Acid rain

4.  None of these

4
Correct Answer :

Ozone layer depletion


Explanation :
No Explanation available for this question

1.  Coal miners

2.  Refinery Workers

3.  Petrochemical industry

4.  Farmers

4
Correct Answer :

Coal miners


Explanation :
No Explanation available for this question

1.  70%

2.  100%

3.  50%

4.  30%

4
Correct Answer :

70\%


Explanation :
No Explanation available for this question

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