global youth organization for human

Harmful results of Greenhouse Effect is global warming. While the green house gases enable life to exist, problems arise when the atmospheric concentrations of these gases increase. All climate changes up to the industrial revolution occurred naturally as very few gases were released by ..

Realising the changes in global climate and human interferences resulting in such changes, many global conferences are held in order to reach consensus among countries to plan and implement the measures to mitigate the harmful effects of climate change. They were 1) S..

Health is considered to be the state of perfect functioning of body and mind, unhindered by diseases. Disease is the malfunctioning of the organism or part of it due to infection, inherent weakness or environmental stress, that upsets the normal physiological functioning of the ..

These are organs where maturation and proliferation of lymphocytes takes place. Lymphoid organs where T and B lymphocytes mature and acquire their antigen - specific receptors are called Primary Lymphoid organs. Bone marrow (site of B cell maturation) and Thymus gland..

Organ transplantation has become a therapeutic modality to treat patients with end - stage disease. While many types of organs have been successfully transplanted, the histocompatibility barrier between recipient and donor remains a problem. It activates immune responses leading..

fig. 25.8 Worlds first cloned cat called CC (Calico Cat) seen with her surrogate mother Allie Ian Wilmut and co-workers produced in 1997, the worlds first clone of an adult sheep at Edinburgh's Roslin institute. The clone of a sheep was created from a single cell taken from the udder of an adult sh..

In human beings, the respiratory organs are the lun..

Along with warmer temperatures and higher humidity, the number of very hot days is expected to rise in many areas around the globe. Heat stress occurs in such conditions and the young, old and poor people are more susceptible to it. High temperatures will reduce work efficiency of human ..

In human beings, the respiratory organs are the lung..

Introduction - Living organisms are exposed to various external or foreign substances and disease causing organisms like bacteria, viruses and fungi. Such organisms which can cause a disease are known as Pathogens. It is observed that some human beings are mo..