In this lesson, you will learn about the anatomy and reproduction of birds.
A lesson about the structure of fats and oils and their role in the human body
I bet I can disprove that different flavours are detected by different parts of your tongue.
The most characteristic symptom of malaria is fever. The pathogen of the disease is spread by mosquitoes.
Menstruation is a natural part of the lives of girls and women from puberty until menopause.
Find out interesting pieces of information about the communication of animals.
This lesson presents the development of human speech and the structure and functioning of the organs of speech.
In this lesson you will learn about the basics of speech perception and language acquisition.
This lesson presents the structure and classification of bacteria and the role they play in our lives.
Learn about the human sense organs and their functions and how to keep them healthy.
The lesson presents the components of a healthy diet.
Plants also move. Although they do not have muscles, they can change the position of their organs.
Let's catch a glimpse into the world of microscopic unicellular organisms!
The lesson introduces you to various types of teeth and their functions.
In this lesson you will learn more about this special liquid.
Let's find out interesting facts about the flora and fauna of polar regions and the living conditions in those areas!
In this lesson you will find out where deciduous forests are located on the Earth and their fauna and flora.
Find out what types of bones there are and what anthropologists do!
Find out interesting facts about the anatomy of amphibians and their vital processes.
This lesson presents mutation types, their frequency and underlying causes.
Learn how the human body is built up and about the differences between men and women.