The menstrual cycle is complex and controlled by many different glands and the hormones that these glands produce.
The four(4) phases of the menstrual cycle are:
(1) menstruation.
(2) the follicular phase.
(3) ovulation .
(4)the luteal phase.
Common menstrual problems include heavy or painful periods and premenstrual syndrome (PMS).
Explanation:
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Answer:
In contrast to light microscopes, electron microscopes use a beam of electrons instead of a beam of light. Not only does this allow for higher magnification and, thus, more detail, it also provides higher resolving power.
The border between the
transparent edge of the cornea and the white of the fibrous sclera is the limbus.
The limbus contains clusters of limbal stem cells that help to maintain the corneal
epithelium and to regulate corneal transparency and vision throughout life. The
limbus also acts as a boundary that protects the conjunctiva and its blood
vessels.
Turbines. Invented by Charles Parsons. I know I'm in middle school, but we are just learning about hydroelectric power.
