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Biology

Biology
Which of the following is not an enzyme?

Pepsin
Ptyalin
Oxytocin
Trypsin

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Biology
Blood leaving lung, is rich in

Carbondioxide
Oxygen
Number of RBC
Haemoglobin

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Biology
Rain water helps to increase the ____ to some extent.

phosphorous contents
potash contents
calcium contents
nitrogen contents

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Biology
Which of the following animals shows radial symmetry

Fish
Frog
Star Fish
Pila

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Biology
Which one of the following is an enzyme ?

Keratin
Gastrin
Vasopressin
Trypsin

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Biology
________ is the interaction in which one species benefits and the other is neither harmed nor benefited.

Parasitism
Commensalism
Predation
Competition

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