Which immunoglobulin is present in mother's milk?

Select the correct option to fill up the blanks.
$(i)$ Diseases which are easily transmitted from one person to another,are called $.....$ diseases.
$(ii)$ In human body,parasite of malaria initially multiplies within the $........$ and then attack the $......$
$(iii) ......$ is the yellowish fluid secreted by mother during the initial days of lactation.
$(iv) ......$ and $.......$ are the primary lymphoid organs.

Where is the antivenom for snake bites produced?

Physical barrier = .............. and physiological barrier = .............

Identify the odd one out from the following options.

Which of the following diseases is an autoimmune disorder?