The human reproductive system is an organ system by which humans reproduce by giving birth to living offspring. In human reproduction, two types of sex cells, or gametes, are involved. The male gamete or sperm and the female gamete, the ovum. When sperm fertilizes an egg, this fertilized egg is called a zygote. After a long process it becomes an embryo and later a fetus.
The Renaissance was a cultural and academic movement that emphasized the rediscovery and application of the texts and thought of classical antiquity, which occurred in Europe between the years 1400 and 1600.
10 Commandments Explained for kids
The foods are grouped according to different criteria. One of them is according to the functions that they develop in our body.
Nelson Mandela was a civil rights leader in South Africa. He fought against Apartheid, a system for non-white citizens to be segregated from whites and not have equal rights
Apartheid was a system to keep white people and "non-whites" apart in South Africa.
Energy is the force capable of generating an action or work. This is a Simple Guide to Understanding Energy: How many devices are there in your life, which consume energy?
![Five Sense Organs [Parts and Functions for Kids]](https://howforkids.com/wp-content/uploads/2022/08/5-Sense-organs-for-lids.jpg)
The eyes, nose, tongue, ear and skin are the organs that collect information about our environment and help protect the body because they "warn" what is happening around.
Studying the planet as a whole is complicated. To do this, it is divided into terrestrial spheres. The spheres are four: Hydrosphere, Geosphere, Biosphere and Atmosphere.
