How would you describe the minerals cleavage? Is it one plane or more planes? How do you know?

Cleavage - As defined by the composition of its crystal lattice, a mineral's ability to break over smooth planar surfaces. Cleavage planes are characterized by being smooth and also having translucent surfaces from fractures. Fracture - The form in which a mineral splits off from a cleavage plane.

Explanation:

Hope this helps!

blue

light-years

magnitude

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.