K-EQ1

Essential Question #1 toc
 * How does something so small affect an organism, community or planet? **

Daniel
Viruses are very small, smaller than our cells. Some of them causes harm to us and some don`t. Those that causes us harm are called pathogenic viruses.

One common kind of pathogenic is HIV, also called as Human Immunodeficiency Virus. It can lead to AIDs if not given medical treatment immediately. They infected your body, but they are not done yet! A virus multiplies very fast! You will infect others through physical contact, causing other people to die. The virus will then multiply more and more and spread it to other people! Causing lots and lots of casualties......

It will be very dangerous if we don`t get rid of the virus!

Hansol: This is what I thought to write but when I came in, you already did it.. Nice picture. Is it really a picture of "real" virus?

Hansol
Usually, viruses and bacteria are known as harmful things/organisms(organism is not for virus since they are not alive.). However, viruses and bacteria can be useful. Firstable, if scientists pull the virus's genetic material out and put other genetic material in, and use the virus as a messenger, it could be really useful. It may protect the contagion of diseases. This small, unseeable little virus can prevent contagion or infection of disease. Also for bacteria, most bacteria are harmless to living organisms. Some bacteria in the soil convert nitrogen in the soil in to the simpler nutrients so plants could absorb them. This means without those tiny bacteria, plants won't be able to absorb nutrient in the soil. http://www.cst.cmich.edu/centers/mwrc/nitrogen_cycle1.gif This is the picture of nitrogen cycle, and without bacteria, it won't really happen. So, this is how small viruses and bacteria change organisms, communities and planet!

Brittany: You did a good explanation of how viruses and bacteria could be helpful to the planet. I also like how your picture shows a cycle, but I don't really get some of the labels. Good job, though. Ray: I never knew that bacteria helps plants. Good job with your post, although the picture is a bit complicated. Daniel: Cool picture! Something like a life cycle!

Brittany
If there weren't any bacteria, we probably wouldn't exist. About 3.5 billion years ago, bacteria were the only forms of life on Earth. Right now, archaebacteria live in extreme places where no other organisms live. For example: salt ponds, hot spring, deep ocean vents, etc. So that means that Earth was full of extreme environments 3.5 billion years ago. There wasn't any oxygen back then, either. But the archaebacteria changed that after a long period of time. They went through the process of photosynthesis and made the Earth livable for other organisms. Thanks to these tiny life forms, we can exist. I chose this picture of a hot spring because archaebacteria live there. The orange color is from the bacteria. http://www.flickr.com/photos/leviathor/326252520/

Madi: You made it very clear that we need bacteria, good job. But how did bacteria go through photosynthesis, do bacteria have cytoplasm? Hmm.. Still, good job!\ Caroline: Cool job Brittany! I feel in debt to archaebacteria now.

Madi
Helpful Bacteria are in our food! People all over the world are familiar with products like soap or hand sanitizer, which are designed to kill bacteria. But did you know that there are many, many foods on the market that not only contain bacteria, but advertise their health benefits? You might have heard that "live and active cultures" in yogurt are helpful. What you might not know is these live and active cultures contain bacteria called 'probiotics' that may work together with substances found in common foods called 'prebiotics.' Studies suggest that probiotics and prebiotics contribute to our bodies' health. Probiotics are available in conventional foods (yogurt, some soy products and fermented and unfermented milk) and dietary supplements (capsules, tablets, powders, etc.). Prebiotics are found naturally in foods such as whole grains, bananas, onions, leeks, artichokes, garlic and honey. They may help reduce risk of certain cancers, enhance calcium absorption, improve gastrointestinal health and boost the immune system.

This is what Bacteria in yogurt looks like. http://www.flickr.com/photos/24876360@N03/2349323069/

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Travis
How does something so small affect an organism, community or planet? Bacteria is a large group of unicellular microorganisms. Some bacteria cause disease, many kinds of bacteria live on or in the human body and prevent disease. Bacteria inhabited earth long before any organism or other living things. The first bacteria that scientists have discovered was in fossil remains in rocks, probably lived about 3.5 billion years ago. These early bacteria inhabited a harsh world. It was extremely hot, with high levels of ultraviolet radiation from the sun and with no oxygen to breath in. If it wasn't for bacteria we wouldn't be here right now or for other living things on earth. Bacteria is every where it could even be on your food right now, in your body, food, under the sea, the air that you breath in, they are in every thing and every where around the world. They multiply every 20 minute from 1 to 2 from 2 to 4 and on and on. Everyone on the world all have bateria disease like cavities. Without any contact with bacteria, are highly susceptible to infectious diseases if they are exposed to the outside world. Bacteria in our bodies also provide us with needed nutrients, such as vitamin K, which the body itself cannot make. (to see the photo please click) [|http://www.fl][|ickr.com/photos/selago/22731535/] I pick this picture because it a picture of bacteria that live in the lake of San Francisco.

Ray
The first forms of life on Earth were bacteria. Using photosynthesis, they made it possible for other organisms to live. Without bacteria, no one would be here today. Bacteria help you digest things that your body can’t break down, make a bunch of the food that we eat such as cheese, and many other good things. However, it can also cause diseases such as strep throat. Viruses can also cause diseases to people. They use host cells to replicate themselves then move on. They can easily spread around just by body contact, insect bites, animal waste, and exchanging bodily fluids. Plus, every organism can be infected by a virus. However, if you take out the bad genetic material in the virus and replace it with good genetic material, then the virus can help cure things. An example of how a virus affected a community is the black plague. Viruses and bacteria can both affect an organism, a community, or a whole planet in good ways and bad ways.

[] This picture is related to my post because it shows how the black plague spread so far.

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Caroline
Oh, viruses and bacteria can be more harmful than just colds and fevers. Viruses and bacteria can both cause epidemics. If the HIV virus somehow became a normal disease, it would be possible that the whole world can die out. Let me explain. If HIV were somehow able to take control of many people's bodies, than our immune systems will collapse, and you won't even know it. Then, if you got a fever, or measles, you would have a very big chance of dying. Even if you went to the hospital, there wouldn't be much anyone can do, since all the doctors would also catch your fever, and they will be hurt too. This way, ever so slowly, people can catch something and the consequences would be fatal. It's pretty scary.

[] This picture relates to what I'm saying because it shows how may people were infected by the HIV in 2007.

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Kira
Viruses are very, very, small particles. They are smaller than cells. Viruses are non-living particles that invades a host and then reproduces inside. Viruses don’t use energy to grow or reproduce or respond to its surroundings. A virus such as rabies can infect a animal. The animal could bite a person transferring the virus to the human. The human could infect people around them and then they will have rabies and then they will infect the people around them and then everyone around them will have rabies. [] This is an image of Rabies virus that causes loss of appetite, headaches, fever and pain or itching on the site of exposure.

Kyle
Viruses and bacteria can help you and can also hurt you very bad. Bacteria have been here for 3.5 billion years ago, and they have really helped us since. Bacteria (archaebacteria) transferred the nitrogen in the air into the soil to help the plants grow. They both can also be very bad. Those viruses are called pathogenic viruses. Instead of just infecting your cells and leave, they usually pop your cells, then leave. There are also good viruses, that can help you digest better etc... Both can also cause very big diseases, for example HIV. Viruses also can conjugate, where they swap DNA. For example, when you use anti-biotics, it just kills off most of the viruses, except not all of them die. The surviving ones conjugate to make more viruses with more of the same DNA to repel the anti-biotic. http://upload.wikimedia.org/wikipedia/commons/9/9d/Cholera_bacteria_SEM.jpg here is my picture, just enter it in to your address thing.

Michel
How does something so small affect an organism, community or planet? Well viruses and bacteria can be good or bad. Both viruses and bacteria can multiply very fast, thats why we keep our dairy products in the fridge, so they don't spoil because it slows down the process. When a harmful virus called pathogenic virus gets into your body, they attack the cells and use their mechanics to replicate its self. When the cell is full it bursts open and dies. A bacteria replicates differently, when the temperature is right and the environment is right the bacteria start to replicate faster which is called binary fission. When this happens it takes twenty minutes for each bacteria to replicate its self, so after 140 minutes each bacteria makes 128 bacteria's. So when one organism gets infected, the infection can get into other organism and your whole community can be infected. http://www.3dscience.com/Resources/Influenza_Virus.php This is a picture of a virus (flu virus)

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**Santiago**
As you may know bacteria come in many different shapes and sizes. Some are dangerous bacteria that can cause deadly diseases, but on the other hand we have some bacteria that is helpful to humans. Humans use bacteria to clean oil spills. They put some bacteria in the oil, and since the bacteria has food it will start reproducing about once every 20 minutes. After a few hours the oil spills will be gone. Although bacteria helps humans, it is also harmful. A deadly diseas caused by bacteria is tuberculosis. This diseas affects your bones and your lungs. It is transfer by just talking to someone that has this diseas or by being close to that person. [|Picture] This is a picture of a lung infected with tuberculosis bacteria.

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Troy
Viruses are small and they are everywhere in many different kind of shapes! Most of them are harmful to people. Firstable, they are parasites. They live on or in a host and cause harm to the host. They infect, six kingdoms of archaebacteria, eubacteria, protists, fungi, plants, and animals. The viruses, they spread into the air and infects people by infected person, contacting with a contaminated object, animals, and environmental sources. Some of those disease can be deadly. For example when you get bitten by an animal that has rabies you are brain will go crazy and you will eventually die. Also, there is a disease call **encephalitis** from mosquitoes. It will cause swelling brain tissues. Therefore, even though, viruses are smaller than tissue, it can affect an organisms, community, or plant. Here is a picture of an animal that has rabies Deric:You have to put a 'back to top' link. Anyways, I love your picture. Is rabies a virus?

Deric
Remember the EQ's last time? Exactly that. It doesn't matter how ever small one object is. It can do alot to its surroundings and itself. Such as viruses and bacteria. Bacteria can give so many diseases and sicknesses its uncountable. Also, it can help the world. Many dairy products like yogurt and cheese are made with bacteria. No, they arn't made of bacteria. What happens is that in yogurt is that it is spoiled milk. But it is specially made so don't drink your spoiled milk(eww). Those special bacteria help spoil the milk making it very concentrated and slushy. Then people put taste to it and ta-da! you have yogurt! Viruses also have many effects to the world. Viruses have viral diseases like the common cold and SARS and AIDS and so much more. The common cold may be small but boy does it spread fast. It is so highly contagious that I believe every single person on earth has had it aleast once or twice. If the common cold was lethal however, most of us would be dead by now. It happens so much that is is the only disease with a 'common' in front of it. SARS is another viral disease that causes alot of harm. It is extremely contagious but people found a treatment to stop it. Now that it is stopped, it doesn't happen at all. The main reason is because of the treatment people had found. The treatment is also another big one. If people hadn't found a treatment. It would have caused panic in not just communities but the world. It would also kill alot of people and lead to maybe extinction(like in the movies). There are many other ways but this is it for now. Thanks for viewing. [] [] Back to top