The menstrual cycle begins between the ages of 9 and 13. It brings physical and hormonal changes into four phases: menstruation, follicular phase, ovulation and luteal phase. This cycle typically lasts 28 days. It affects mood, health and fertility. The experiences are very different. Some have few
From the first menstruation until menopause, a hormonal cycle regulates the female body to prepare it for a possible pregnancy. The cycle can be divided into different phases. Author: ZDF/TerraX/Anke Plascher/Ellen Haas/Anna-Lena Neidlinger/MUSIC Maximilian Mohr Translation and dubbing: alugha Cl
Woman between the ages of 12 and 50 years old undergo a monthly cycle in which their uterus prepares for pregnancy; it prepares for a fertilised egg to settle and grow into a baby. If pregnancy does not occur, the lining breaks down and is expelled from the uterus. This is known as menstruation.
Click here to see more videos: https://alugha.com/SystemsInnovation 1Take the full course: https://systemsinnovation.io/course/ Follow along with the eBook: https://systemsinnovation.io/books/ The adaptive cycle is a heuristic model developed by C.S. Holling for understanding macro processes of cha
Nitrogen makes up 78% of the air, however neither plants nor animals can take nitrogen directly from the air because nitrogen is so unreactive. The nitrogen cycles shows the movement of nitrogen through the environment. Nitrogen is continually cycled through the air, soil and living things. Plant
The natural water cycle is powered from solar energy. Its thermal radiation evaporates water from oceans, lakes and rivers into water vapour. As precipitation, the water enters lakes, rivers and groundwater and eventually flows into the sea. Author: 3sat/nano, mirror TV, Christine Voges, R. Engelk
The amount of all water is constant. But where is the part that is not there at the moment? Or why is the sea level rising? The water cycle provides an explanation. A production from the 2nd year media designer image and sound, class of 2019. Author: medien colleg HRO, https://www.youtube.com/watch
Watch part 2 of the videos on the Carbon Cycle, as a part of environmental chemistry. Mankind has had an influence on the carbon cycle. The carbon dioxide released during respiration is cycled naturally. Same is the case if we burn wood and agricultural waste – even biogas given off from food we t
Watch the first part of our Carbon Cycle videos, as part of environmental chemistry. Photosynthesis and respiration help carbon to be cycled in nature by using energy from the sun. As living things grow, they have to build up large polymer molecules from small molecules. Protein comes from joinin
Learn about THE WATER CYCLE as part of WELS (Waterpedia Environmental Learning Series) Follow us on: https://www.linkedin.com/company/Waterpedia https://www.facebook.com/Waterpedia https://twitter.com/WaterpediaWiki https://plus.google.com/+WaterpediaWiki Visit https://waterpedia.wiki - a wiki bas
The position of the Earth's axis affects the Earth's ice cover. With a cycle of about 40,000 years, the Earth's axis tilts up to two degrees more toward the sun. Whenever this happens, there is less ice cover. Author: ZDF/Terra X/ H. Kotarba/ Albrecht M. Wendlandt Translation and Dubbing: alugha
For more Science Videos: https://lt.org/ * What happens in the marine nitrogen cycle? In this video, KATHARINA KITZINGER explains that nitrification as carried out by marine microorganisms involves two distinct processes, with ammonia oxidation resulting in nitrite which is then transformed to nitra
