Given below are six sets with four terms each. In each set one term is odd and cannot be grouped in the same category to which the other three belong. Identify the odd one in each set and name the category to which the remaining three belong. The first one has been done as an example.
Example: Calyx, Corolla, Stamens, Midrib
Odd term: midrib
Category: Parts of a flower
(i) Haemoglobin, Glucagon, Iodopsin, Rhodopsin
(ii) Urethra, Uterus, Urinary bladder, Ureter
(iii) Transpiration, Photosynthesis, Phagocytosis, Guttation
(iv) Cyton, Photon, Axon, Dendron
(v) Oxytocin, Insulin, Prolactin, Progesterone
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(i) Odd term: Glucagon
Category: Pigments
(ii) Odd term: Uterus
Category: Parts of excretory system.
(iii) Odd term: Phagocytosis
Category: Processes in plants
(iv) Odd term: Photon
Category: Parts of a neuron.
(v) Odd term: Insulin
Category: Female reproductive / sex hormones.