5. Phoenix, Arizona, is a city in the Southwestern desert. Summers are extremely hot. Winter days are often fairly warm but winter nights can be quite
chilly. In December, inversions are quite common. How does an inversion form
under these conditions and what are the consequences of an inversion to this
sprawling, car-dependent city?|

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.

the correct answer is d

the law of original horizontality explains:   why rocks appear in layers. correct answer: b the law suggests that all rock layers are originally laid down (deposited) horizontally and can later be deformed.   the principle is used by geologists to make assumptions about the relative ages of sedimentary rocks.