Organisms employ different strategies to boost its defenses against antigens. Humans have an immune system to combat pat..
Apart from vitamins, the human body also requires high energy sources such as carbohydrates and fats. If you want an ove..
Different pregnancy and birth control and contraception strategies are described. Read this tutorial to learn each of th..
The kidneys are responsible for the regulation of water and inorganic ions. Read this tutorial to learn about the differ..
Humans are capable of only one mode of reproduction, i.e. sexual reproduction. Haploid sex cells (gametes) are produced ..
A balanced diet is essential to a healthy organism. Insufficiency or too much of a particular element or compound, such ..
