Which evolutionary adaptation‘s helped plant succeed and spread out on land? Vascular tissues and seeds, spores and pinecones, small size and small seeds, cotyledons and non vascular tissue?

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.

answer; somatic;