Search results for “cèl·lules de les fulles”

A-LEVELS FULL 2025 GUIDE

Dickson Wong, our award winning tutor for Maths, Economics, and Mandarin explores the fundamental changes being made to A Levels across the board in 2025. Dickson is experienced with a breadth of age groups and curriculums, having taught students from Year 3, GCSE and A level all the way to univers

Why the hormone leptin makes us full

Leptin is very important for the regulation of our body weight. If the fat cells are sufficiently filled, they send out leptin and thus signal that you are sated. Author: 3sat/nano, Telekult, Petra Cyrus, Thomas Henk Henkel+Knut Muhsik, Lena Hatebur), tricky GbR Translation and dubbing: alugha Cl

Do you want to save someone's life | DKMS Germany

Of course you would save someone's life! But why don't you do it? 🤔 It's mega easy! In our video, we'll tell you just three short steps. 💪 It's really easy: open your mouth. Chopsticks in. Be a donor. Order your registration set on dkms.de/yt-registrierung and become a stem cell donor. Maybe you

Volcanism in the Andes

The volcanoes of the Andes are particularly explosive. The oceanic plate that dips below the continental one contains a lot of water. The water evaporates in the glowing magma. High pressure is created, which discharges at the Earth's surface in massive volcanoes. Source: https://www.zdf.de/dokumen

Dogs in ancient Rome

Lap dogs were probably showered with luxury and pampered as never before in history. But not all Romans wanted these little dogs. Hunting dogs were common as well: greyhounds, bloodhounds or massive Molossians. Source: https://www.zdf.de/dokumentation/terra-x/hunde-im-antiken-rom-creative-commons-

Anatomy of the clitoris

The clitoris is part of the female genital. Only the glans clitoris is visible. Most of the organ is located inside the pelvis. https://www.zdf.de/dokumentation/terra-x/anatomie-der-klitoris-creative-commons-clip-100.html URL to full docu: https://www.zdf.de/dokumentation/3sat-wissenschaftdoku/vu

Anatomy of vulva and vagina

The entire externally visible female genitalia is called the vulva. The internal vagina connects the vulva to the cervix and uterus. Source: https://www.zdf.de/dokumentation/terra-x/anatomie-von-vulva-und-vagina-creative-commons-clip-100.html URL to full doc: https://www.zdf.de/dokumentation/3sat

When did racism start?

Racist thinking is probably as old as mankind. With Columbus and the colonization of Africa and South America over 500 years ago, racism entered the world stage. However, the term "racism" was not coined until the late 19th century. Source: https://www.zdf.de/dokumentation/terra-x/seit-wann-gibt-es

Endangered lion populations

Lions play an important role in the ecological balance in their habitats. This was already the case two million years ago. In the meantime, many populations are threatened with extinction. The situation is particularly critical in West and Central Africa. https://www.zdf.de/dokumentation/terra-x/b

Dark Medicine – Semmelweis

Today, medicine is seen as an authority and a sacred institution. But like any institution, it has a dark past. The story of Dr. Ignaz Semmelweis shows how medicine was terribly wrong and how the poor judgment of the doctors cost many women their lives. In 19th-century Vienna, the young doctor was r