7. Explain at least two ways in which wind pollinated plants' structures are adapted for wind pollination.​

Wind pollinated have light and small pollen grains to be easily carried away. They also lack petals or have small ones, so that the pollen can be exposed and easily swept by wind.

the level of progesterone is low at the pre-ovulatory phase of the cycle but it gradually increases and the levels are high at the luteal phase. if pregnancy occurs, the level of progesterone will be high throughout the pregnancy.

if egg is fertilized and the mother gets pregnant, progesterone starts preparing the uterus for the implantation. it starts building up the lining of uterus and make it hostile of the period of pregnancy.