Biology
In each set of terms given below, there is an odd one and cannot be grouped in the same category to which the other three belong. Identify the odd term in each set and name the category to which the remaining three belong.
Example: Ovary, Fallopian tube, Ureter, Uterus.
Odd term: Ureter
Category: Parts of female reproductive system.
(i) Sewage, Newspaper, Styrofoam, Hay.
(ii) Thymine, Cytosine, Adenine, Pepsin.
(iii) Malleus, Iris, Stapes, Incus.
(iv) Cortisone, Somatotropin, Adrenocorticotropic hormone, Vasopressin.
(v) Typhoid, Haemophilia, Albinism, Colour blindness.
Pollution
ICSE 2016
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Answer
(i) Odd term: Styrofoam
Category: Biodegradable waste.
(ii) Odd term: Pepsin
Category: Nitrogenous bases
(iii) Odd term: Iris
Category: Earossicles
(iv) Odd term: Cortisone (hormone from adrenal gland)
Category: Hormones from pituitary gland
(v) Odd term: Typhoid
Category: Genetic diseases
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