Role of progesterone in menstural cycle

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  • Réponse publiée par: calmaaprilgrace

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    It is secreted by the corpus luteum, a temporary endocrine gland that the female body produces after ovulation during the second half of the menstrual cycle. Progesterone prepares the endometrium for the potential of pregnancy after ovulation. It triggers the lining to thicken to accept a fertilized egg.

  • Réponse publiée par: calmaaprilgrace
    Chemicalsedimentary

    chemical sedimentary rock

    it is sometimes referred to as "orthochemical" sedimentary rocks, originate from materials taken into solution and reprecipitated, without the influence of organic activity (auburn university, 2019).

    it is a rock formed by precipitation of minerals from water   (arizona state university, 2019).

    as the name implies, chemical sedimentary rocks form due to chemical reactions.   these reactions occur within water that is saturated with positively and negatively charged atoms.   such atoms are naturally attracted to each other, and will form ionic and covalent bonds as they crystallize into solid mineral crystals.   this process is called precipitation.   precipitation can occur within an ocean, a lake, a cave, or where a hot spring flows out onto earth's surface   (california state university - long beach, 2019)

    types of chemical sedimentary rocks

    evaporites: are chemical sedimentary rocks form as water evaporates from a lake or ocean.chemical limestone: travertine limestone forms in two different ways due to chemical reactions between charged particles called ions.tufa: forms where a natural spring flows into a

    references

    ~hameswe/geolecture11.html

    biochemical sedimentary rock

    biochemical sedimentary rocks form from sediment derived by biological processes.   this typically occurs in the ocean where a variety of atoms float among the water molecules   (california state university - long beach, 2019).

    they consist of minerals precipitated from solution by organic processes and generally form in basins with ample supplies of sunlight and nutrients. similar to sedimentary rocks, and contained within them, coal is a biochemical deposit composed of compressed, reduced organic remains - typically of plants   (auburn university, 2019).

    types of organic processes

    biochemical limestone: formed mainly of calcite, precipitated as skeletal material (in molluscs, corals, etc.)chert: formed of skeletal sio2 - as from diatoms (a planktonic, marine micro-organism).diatomite: is a sedimentary rock composed mainly of the skeletons of a very common type of marine plankton - diatoms.coal: forms as concentrated plant matter becomes deeply buried over a long period of time.

    references

    ~hameswe/geolecture11.html

    metamorphic rock

    metamorphic rocks started out as some other type of rock, but have been substantially changed from their original igneous, sedimentary, or earlier metamorphic form. metamorphic rocks form when rocks are subjected to high heat, high pressure, hot mineral-rich fluids or, more commonly, some combination of these factors. conditions like these are found deep within the earth or where tectonic plates meet.   (u.s. department of the interior, 2019).

    metamorphic rocks are rocks that have become changed by intense heat or pressure while forming. in the very hot and pressured conditions deep inside the earth’s crust, both sedimentary and igneous rocks can be changed into metamorphic rock. in certain conditions these rocks cool and crystallize usually into bands of crystals. later they can become exposed on earth’s surface. one way to tell if a rock sample is metamorphic is to see if the crystals within it are arranged in bands.   (american geosciences institute, 2019).

    references

    (**note: for further information, visit the links.   additionally, just use google translate for the filipino language translation.   thank you and have fun.)

  • Réponse publiée par: meteor13
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Role of progesterone in menstural cycle...