Archenteron is lined with
Ectoderm
Mesoderm
Endoderm
Mesoderm and endoderm
(c)The archenteron is primitive gut lined by the endoderm.
Sperm lysins contains
Mammalian eggs have
Which of the following cannot pass through the placenta into the foetus
In some eggs, future organs can be demarcated even before cleavage begins. This type of development is called
Failure of descending testis into scrotum is known as
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