Xylem and phloem are vascular tissues in plants. If the xylem in a young tree is damage, which process is first affected.

mammal

explanation:

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.

a chain link fence because there so tiny even my albino donkey can't get out