Transport in plants

Transport of water The roots, with the help of root hairs, absorb water and together with it, minerals from the soil. Hairs are produced in large numbers by each root, as outgrowths of the epiblema. These are unicellular structures; resembling...

The endocrine system Besides the nervous system, the other system which controls and coordinates many of the body’s activities is the endocrine system. This consists of several glands, called the endocrine glands. These glands secrete chemical...

Non communicable diseases

Health and hygiene Diseases can be broadly categorized as non communicable and communicable diseases. Communicable diseases are caused by germs can spread from one person to another. Non communicable diseases, on the other hand, do not spread from...

Renewable Sources Of Energy

  INTRODUCTION Society in general has become aware about the conservation of resources and protection of environment. Though the awareness has come after a great loss to the environment in the form of global warming, acid rain and ozone depletion...

Present Major Polltuion : Air Pollution

  AIR Air (containing oxygen) is a vital requirement for sustaining life. Initially on the atmosphere of earth there was no oxygen and even then the life was there. Slowly the  oxygen  requiring  organisms  developed  with  the  evolution  of ...

Food production and management

In ancient times, people moved from place to place, hunting animals and gathering fruit and seeds. When they noticed tat seeds thrown away could germination and grow into plants, they started sowing seeds near their caves, and this gave rise to the...

Malfunctioning of organs The malfunctioning of organs gives rise to different disease conditions or diseases. While deficiency diseases can be cured by correcting the diet, diseases caused by the malfunctioning of organs are difficult to cure...

Defence against diseases

We are constantly surrounded by germs, but do no fall or remain ill continuously because our body has certain natural Defence against invasions by microorganisms. The first line of Defence This consists of barriers like hairs, mucous membranes...

Growth and development in higher animals

Growth and development Fertilization is followed by development and growth. As you have read, the offspring of all multicellular organisms originate from the zygote, a single cell, which gradually becomes a complete individual. The changes by...

Green house effect

It is the burning of fossil fuels that release pollution into the air. Even burning biomass- based fuel, or bio fuels, causes’ pollution. The biomass of an organism is its total dry mass or weight. When we speak of biomass –based fuels, we mean...

Coordination in animals

Control and coordination Many processes go on inside the body of a living being, or example, digestion, respiration and growth. These processes do not go on independently. They are related to each other and to the body’s general needs. They are...

Degradation of soil Soil supports plants, which in turn support animals. Any physical or chemical alteration of soil can thus have an impact on all living organisms which depend on it. Deforestation, overgrazing, intensive agriculture, growth of...

The position of Natural resources

Nature resources Natural resources are things that have been created by natural process. From one point of view, they are resources (or things of use) that nature has provided us with. We need them for our survival, hence it is important to know...

Science and technology news

India’s first facility inaugurated: India’s first Transgenic and Gene knockout Mice facility costing Rupees 6 corers was inaugurated on October 3, 2002 at the Hyderabad based center for cellular and Molecular Biology (CCMB). Facility will enable...

Ware bodies Ocean Ocean is large bodies of salt water covering nearly three-fourth of the surface area of the globe. There are five oceans in the world- the Pacific Ocean, the Atlantic Ocean, the Indian Ocean, the southern ocean and the Arctic...

Storage of food grains and vegetables

Harvesting The cutting and gathering of crops from the field is called harvesting. The traditional way of harvesting crops is to cut them with help of sickles. In large farmers, a combine is used to cut the crop and separate the grain from the...

THE RAMAKRISHNA MISSION

Hi friends, through this article I would like to share my knowledge about THE RAMAKRISHNA MISSION, with you.                   RAMAKRISHNA PARAMAHANSA, after whom the Mission was named, was a poor priest in a temple at DAKSHINESWAR near Kolkata....

Hybrid variety of crops and cattle

Crop improvement The aim of agriculture has always been to improve productivity or crop yield. In recent years, productivity has increased tremendously due to the adoption of certain practices, referred to as modern agricultural practices. These...

Method of crop grow more

Improving fertility Crop plants use the nutrients in the soil for their growth and development. Since they are harvested and not allowed to die and decompose in the soil, the minerals absorbed by them are not returned to the soil. So nutrients...

Stages in human( boy and girl) life

A baby goes through various stages f growth after it is born. The most obvious changes are the progressive increase in height and weight until the child becomes an adult. There are other more complex changes, all of which will not be discussed...

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