Identify the odd one in each of the following and mention what the rest are:

(a)laryrnx,glucagon, testosterone,prolactin.
(b) adrenaline, penicillin, insulin, thyroxine.
(c)stomach,ileum,Liver, adrenaline.
[Rest is given in the picture] (please solve question no.7 also)

Dear Student, 

a. Larynx is also known as voice box, present in neck helps in sound, and breathing whereas rest three are hormones.
b. Penicillin is an antibiotic drug, while rest three options are hormones.
c. Adrenaline is odd one out as it is hormone and the rest three are organs in our body.

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