Year of production: 2019
Duration: 3:44 minutes
The subject of this film is bacteria. They are constantly there. We cannot survive without them, but they can also be a danger for us. And there are lots of them: ten to the power 14 bacteria live on and in our bodies, making up about 2 kg of our bodyweight. Normally we don't notice much of our busy cohabitants' goings-on. There are 500 different types of bacteria in our mouths alone. But if bacteria like streptococcus mutans reproduce there unhindered, we can get tooth decay. Bacteria are single-cell organisms. But unlike other cells, they do not have a nucleus. Their DNA is contained in the cell plasma. They reproduce through division.
At the end of the purchase process you can choose between the delivery types Download and USB stick.
No GEMA fee.
Protected by copyright.
Classroom license for unlimited use in your lessons
School license for unlimited use at your entire school
Flatrates are subject to the license conditions stated in the product text