Biology
Which of the following function is performed by the kidneys in the human body?

Transportation
Excretion
Respiration
Digestion

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Biology
In test tube baby

Fertilization of ova takes place in test tube which development of embryo occur in uterus
Fertilization of ova and development takes place in test tube
Fertilization takes place in uterus while development takes place in test tube
Development of ova take place in test tube without fertilization

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