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 …
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 …
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 …
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 …
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. …
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 …
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 …
Bacteria are broadly classified as gram-positive and gram-negative bacteria based on gram stain. But both of the groups are Prokaryotic cells similar in many aspects. Check the similarities at the …
Anatomy is the science which deals with studying the internal structure of a body. The word anatomy comes from the Greek word anatome, meaning cutting up. The term dissection is …
The primary function of the nervous system is the transmission of signals and communication. This is achieved through transmission through synapses. A neuron is the structural and functional unit of …