Summary :
+Fave
Message
Interested in Exam Papers of :
Education History (Schools / Colleges / Universities attended) :
+215
Faves (1):
In Faves Of (2) :
Recently Viewed ResPapers :
Recent Responses by rijulgupte :
1.It allows diffusion of substance from the mother to the foetus.2.It acts as an endocrine gland
Advantage--Cheapest means of transport Disadvantage--It depends on weather conditions