Basically we can divide the whole cycle into 6 phrase. menstruation, repair phrase, ovulation, receptive phrase, and pre menstrual phrase, all in this order. usually a cycle takes around 28 days, but it can sometimes be longer or shorter depending on different women. for around the first 5 days (again, it's not exact days) it's menstruation, uterus lining is shed out from the vagina. this only occurs if fertilisation and implantation does not take place. then for the next few days, it's the repair phrase, oestrogen helps repair the lining of uterus, to thicken it up, to prepare for fertilisation and implantation, a place for the fetus to develope. next 3 days will be ovulation, where the ovary will release one mature egg (but sometimes 2 or none) into the oviduct, the egg can only survive for a few days so if fertilisation doesn't occur during this phrase, menstruation will occur that cycle. next will be receptive phrase, where the lining keeps on thickening, and the thickness is maintained by progesterone, another female hormone. at last it's the pre menstrual phrase, lining will start to degenerate unless implantation ocured. hope this helps
Green plants have the ability to make their own food. They do this through a process called photosynthesis, which uses a green pigment called chlorophyll. ... Through photosynthesis, the plant uses the stored energy to convert carbon dioxide (absorbed from the air) and water into glucose, a type of sugar.
Passive Transport in Cells: Simple and Facilitated Diffusion & Osmosis. A cell membrane is selectively permeable - not permeable to everything. In this lesson, we'll talk about methods of passive transport along a concentration gradient, including simple and facilitated diffusion and <span>osmosis.</span>
Saturated fatty acids lack double bonds between the individual carbon atoms, while in unsaturated fatty acids there is at least one double bond in the fatty acid chain. Saturated fats tend to be solid at room temperature and from animal sources, while unsaturated fats are usually liquid and from plant sources
Think about what a school would have/use that has the most environmental impacts. I think of energy and waste from trash. To counteract these they could install a cleaner method of getting energy like solar panels and for the trash they could implement a recycling program