A) Rabbit
B) Deer
C) Sheep
D) Pig
Correct Answer: A
Solution :
Placenta is the connection between foetus and uterus of mother and helps in nutrition, excretion and respiration. Discoidal placenta is a character of rat and rabbit, in discoidal placenta villi is strong and form disc like structure. Placenta of sheep and pig is of cotyledonary and diffuse type.
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