the continental crust is ? a. made of rock 200 million years ago. b. composed of mostly granite. c. formed quickly cooled lava layers. d. up to 6km thick

It's not C or D because the Crust is actaully around 36km thick so that means it's eitehr A or B and the crust is mostly made form granite so Ima say B is the answer

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 answer is cell division : )