In Ponus sp male cone matured earlier than female cone describ how this species encures the Success of pollination ?

In Pinus species male cone matured earlier than female cone, this ensures success of pollination in that the male cone will be in a position to produce more pollen grains.

These pollen grains will fully occupy the female part and thus the effect will be that the cone will be fertilized by its species other than other species.

the corpus luteum secretes estrogens and progesterone. the latter hormone causes changes in the uterus that make it more suitable for implantation of the fertilized ovum and the nourishment of the embryo. if the egg is not fertilized, the corpus luteum becomes inactive after 10–14 days, and menstruation occurs.

i hope this : )