Plants are able to support themselves in an upright position due to turgor pressure. water maintains the turgor pressure in stems like air inflates a balloon. which of the following body systems humans to survive? a. circulatory b. lymphatic c. digestive d. skeletal

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.