biology working models including botany and zoology working models
This 3D Human Respiratory System Working Model created for a science project exhibition. The model clearly demonstrates how the human lungs function during breathing. It is designed using simple craft materials like cardboard, colored paper, tubes, and labels, but it effectively explains a very important biological process — respiration. Let us understand the structure and … Read more
Introduction The human digestive system is one of the most important systems of the body. It helps in breaking down the food we eat into simpler substances so that our body can absorb nutrients and use them for energy, growth, and repair. Without digestion, our body would not be able to get the required nutrients … Read more
Introduction The human respiratory system is responsible for breathing and supplying oxygen to the body. Oxygen is essential for the survival of all living cells. The main organs of the respiratory system are the nose, trachea, lungs, and diaphragm. Breathing involves two main processes: inhalation (taking in oxygen) and exhalation (releasing carbon dioxide). This Human … Read more
Introduction The human heart is a vital organ of the circulatory system. It works continuously like a pump to circulate blood throughout the body. The heart supplies oxygen-rich blood to all organs and removes carbon dioxide and waste products. Understanding the working of the heart is very important in biology. This Human Heart Working Model … Read more
Introduction The human kidney is one of the most important organs of the body. Kidneys play a vital role in maintaining internal balance by filtering blood, removing waste products, regulating water level, and maintaining proper concentration of salts and minerals. Every day, kidneys filter nearly 180 liters of blood to remove toxins and excess substances, … Read more