Microvilli were first seen by Granger and Baker in 1950 on intestinal epithelial cells by electron microscopy. They appear as brush bristles on the apical cell surface of some epithelial cells in …
There are many secretory organs in the human body. This includes Endocrine glands Exocrine glands Other organs All the above organs secrete essential substances that help in normal body physiology. List of …
The human body is made of many organs with different structures and functions. Of them, there are many hollow organs like These organs are hollow internally without any solid or liquid mass. …
Birds are vertebrate animals that have a distinct ability to fly. Unlike mammals and reptiles, their forelimbs are modified into wings, which make them master the sky. They never live on land …
The human body has 5 special sense organs which are of immense use to life. These include the Eyes Ears Nose Tongue Skin. They are called special because they have specialized sensory …
Rocks and stones are naturally formed solid matter. They are hard, robust, and long-lasting. They are beneficial to both men and the environment in many ways. Uses of Rocks and stones In …
A root system is part of the plant that holds it to the ground and supply water and other essential nutrients. All the complex formed by the roots of a plant is …
A material can undergo either a chemical change, physical change, or sometimes both. The key differences between chemical and physical change are seen in terms of visible variation in forms. In a …
Salivary glands are the exocrine glands located in the mouth. They are the organs of the digestive system. If you notice a few patterns in your mouth, you will find that Your …
The polymerase chain reaction, or PCR, was originally developed by Kary Mullis, for which he was awarded the Nobel Prize in 1993. PCR is a laboratory technique that is used to generate …