Several hormones likes hCG, hPL, estrogen, progesterone are produced by
ovary
placenta
fallopian tube
pituitary
Oestrus Cycle -
The females of placental mammals exhibit cyclical changes in the activities of ovaries and accessory ducts as well as hormones during the reproductive phase. In non-primates, it is called oestrus cycle.
- wherein
E.g. mammals like cows, sheep, rats, deers, dogs, tiger, etc.
Placenta exhibits cyclic changes in various hormones during reproductive phase.
Option 1)
ovary
this is the incorrect option
Option 2)
placenta
this is the correct option
Option 3)
fallopian tube
this is the incorrect option
Option 4)
pituitary
this is the incorrect option