HOMEOSTATIC MED4U

Yes ! It's that old riddle that sparked many arguments through years - was it the chicken or the egg that came first? It's a really tricky question because you need a chicken to lay an egg,but chickens come from eggs,leaving us with this feathery life that apparently has no starting point. Thankfully,there is no need to keep brooding over this forever. This is a riddle which we can unscramble with the principles of evolutionary biology. Let's get cracking. The first were the chicken eggs. But wait - weren't there some scientists who claimed that the chicken came first? This claim came from some researchers studying how chicken eggshells form. Eggshell is mostly made from Calcium Carbonate (CaCO3). Hens get their supply of calcium for eggshell production from dietary sources (calcium rich seafood shells,such as oyster). To form a shell,the calcium needs to be deposited in the form of CaCO3 crystals,and hens rely on specific proteins that enable this process. One such

Ugghhh COVID - 19 is everywhere rite now,killing milllions,not enabling students to go out and enjoy after board exams,not allowing them to eat ice creams and cakes.....What not has this COVID - 19 done to us? It came from a seafood and meat market in Wuhan,China and is now spreading throughout the globe at an increasing rate. So what is this corona virus? A corona virus is a virus found in animals,that is rarely transmitted to humans and when transmitted to a human,spreads from a person to another person. What are the symptoms of corona virus? It takes 2-14 days after exposure to the virus for symptoms to develop. Symptoms may include: 1. Low grade fever that gradually increases in temperature. 2. Cough 3. Shortness of breath. Those with weak immune systems may develop more serious symptoms,like bronchitis or pneumonia.  PREVENTION OF CORONA VIRUS: 1. Maintain distance from people who are sick and avoid meeting in large groups. 2. Cover your cough with a

So,I was just working in my free time in the past few days on finding a cure for cancer. And the following idea just struck me which hasn't been tried by any scientist. Would be happy if people would encourage my idea and help me in spreading the idea to the scientists so that they can experiment it and see if it would actually work out. The idea: So how about we mix cancer medicines in a polymer that is non toxic and edible,and attach that polymer to the biological nanoparticles in our body? These biological nanoparticles target only cancerous cells naturally. Then,doctors can use an MRI to project the tumor site. After finding the tumor site,we can pass a beam of infrared light to the polymer which will melt the polymer and release the cancer medicines only in the cancerous cells,without harming the healthy cells. This method would definitely not cause any side effects and would definitely be better than its alternatives. Hope you all help me out ! Any suggestions or questio

Every year,Diwali or Deepawali is celebrated with great pomp not only in India,but around the world. As per the nomenclature,Diwali or Deepawali means an array of brilliantly burning earthen oil lamps whose luminescence dissipates the darkness of the night.  Since the atmosphere is highly contaminated due to the presence of dead bodies of night flies,the flies which keep on rotating and encircling around the lamps,the earthen lamps when burnt release soot or carbon black which is a very nice absorbing agent. It absorbs all the polluted gases and makes the environment clean. Unlike the high temperature of summer heat,the low temperature of cold winter doesn't evaporate stagnant water bodies easily. Hence,they end up becoming breeding ground for insects,especially mosquitoes,which then leads to spread of several contaminated diseases.  The Hindus,who were already experts in the sciences of yoga and ayurveda,thousands of years ago itself,had all the relevant knowledge back then

What an intriguing question ! Believe  it or not,men can actually lactate. Possessing all the necessary equipment,the main reasons men don't have it happen very often,is mostly just a lack of sufficient amounts of a single necessary hormone.  Milk is produced in small hollow cavities in breast tissue called alveoli,where the linings contain cells that secrete milk when properly triggered. While there are a variety of things that go into someone lactating,including various hormones,the main trigger for milk production is sufficient amounts of the hormone,prolactin,which is primarily produced by the pituitary gland,though,also produced by the prostrate gland in men and a layer of the uterine wall known as myometrium in women,among other places. Both men and women have alveoli,but typically different levels of prolactin. A normal non - pregnant woman has around one third to twice the hormone than the average man at any given time. Late in pregnancy and after giving birth,prolact

Looking after your heart means taking small,but meaningful actions - eating a balanced diet,undertaking regular exercise,reducing alcohol intake,quitting smoking...all the things that not only make you healthier but also helping you to enjoy your life to the fullest. Cardiovascular disease is the leading cause of death. World Heart Day plays a crucial role in changing all this. Its a vital global platform that many people from the world can use to raise awareness and encourage individuals,families,communities and governments to take action now. Risk factors that may lead to heart disease and stroke are: 1. Raised blood pressure,cholesterol and glucose levels. 2. Smoking 3. Inadequate intake of fruits and vegetables. 4. Obesity The one organ in our body which gives us the real meaning of being alive is our heart. People can at times be brain dead yet alive. The majority of deaths are a result of coronary heart disease or stroke - that's more than victims of cancer,HIV,AIDS

Mosquitoes are some of the most deadly creatures on the Earth. They carry viruses,bacteria and parasites,which they transmit through bites,infecting millions of people. Currently,control of the diseases such as Zika virus and Dengue virus is mostly limited to broad - based insecticide sprays,which can harm both humans and non - target animals and insects. What if there's a way to control these devastating diseases without the environmental problems of widespread insecticide use? GM mosquitoes to prevent diseases may sound like science fiction,but the technology had advanced recently to such an extent that there is no longer a scenario related to late - night movies. Today,GM mosquitoes,developed during the past several decades of extensive research in various famous universities,are being used to combat mosquito - borne pathogens,including viruses such as Dengue and Zika,in many places around the world. Progress is also being made to use GM mosquitoes to combat malaria,the m