The major functions that our nervous system performs are as follows : Control : Nervous system controls all the functions of various body parts. Co-ordination : Every body activity involves many body parts. This system co-ordinated and integrate the activities of all the body parts. Never system controls high faculties, such as, thinking, reasoning, memory Read More
जीव विज्ञान की शाखाएँ (Branches of Biology) : विज्ञान की शाखाओं ( Branches of Science ) में से एक जीव विज्ञान ( Biology ) है। इसकी दो उप-शाखायें : जंतु विज्ञान या प्राणिविज्ञान ( Zoology ): प्राणिविज्ञान (Zoology) विज्ञान की एक शाखा है, जिसमे जीवित एवं मृत प्राणियों या जंतुओं का अध्ययन होता है। इसके Read More
Respiration (श्वसन) Respiration is the complex process of biological cells taking place in several orderly phases at normal temperature of the body, under which the organic matter is oxidized by organic oxidation and gradually released energy in a phased manner. In human (as in most other animals) There are four major parts of respiration – Read More
पाचन तन्त्रा (Digestive System) Why the digestive system : The food that we eat cannot be utilized as such in the body. It must be changed into a soluble absorbable form to get absorbed by the blood for distribution in the body. Certain foods, like cane-sugar are already soluble in water, but they require a Read More
कोशिका विभाजन(Cell Division) There are about 5 thousand billion cells in our body. The cells of all multicellular organisms are destroyed all the time. Due to some wear and tear and some accidents. It is due to these cell division that the body grows. The cell in which division occurs is called maternal cell or Read More
The branch of science under which organisms are studied is called biology. Aristotle has been called the father of biology. Any object that has some specific biological activity is called an object. The living beings have the following characteristics, on the basis of which we are able to clearly distinguish it from the non-living. Shape Read More
What are living things सजीव क्या हैं? “Living things move, respond to stimuli, reproduce and grow, respire, and are dependent on their environment. Most living things need food, water, light, temperatures within defined limits, and oxygen.” “जीवित चीजें चलती हैं, उत्तेजनाओं पर प्रतिक्रिया करती हैं, प्रजनन करती हैं और बढ़ती हैं, प्रतिक्रिया करती हैं, और उनके वातावरण Read More
