Match the causes with their effects. Cause: Radiogenic heat rises to heat molten magma. Cause: Tectonic plates at transform boundaries experience friction. Cause: Earth is covered by a crust that runs miles deep. Effect: The mantle is insulated from the atmosphere and retains tremendous heat. Effect: Magma at the core-mantle boundary rises and convection currents are formed. Effect: Pressure builds up, eventually leading to an earthquake.

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.

primary succession occurs in essentially lifeless areas regions in which the soil is incapable of sustaining life as a result of such factors as lava flows, newly formed sand dunes, or rocks left from a retreating glacier. secondary succession occurs

after a the power stroke, adp is released, but the cross-bridge formed is still in place. atp then binds to myosin, moving the myosin to its high-energy state, releasing the myosin head from the actin active site.