Biology
Plant bends towards the source of light on account of the movement of curvature known as

phototropism
thigmotropism
geotropism
chemotropism

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Biology
In test tube baby

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

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