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In my opinion, the greatest discovery in biology is neurotransmitters because they help us in our day to day lives by doing their job

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In my opinion, the greatest discovery in biology was microorganisms. That discovery was what triggered further research and caused the discovery of the other extraordinary topics mentioned in the video. If that wasn't invented, a huge puzzle piece that answers the philosophical question " What Is Life?" would have been missing.

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In my opinion, the greatest discovery in biology was microorganisms because they showed that there is so much more than what you see with your own eye and a new world that has many things we may not know exist. They may also help with things like diseases.

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In my opinion, the greatest biological discovery is the discovery of microorganisms because they are in all plants in animals and it was something no one knew existed.

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In my opinion, the greatest biological discovery is mitosis and meiosis because the splitting of two cells is very interesting to hear about, especially because I know more about how twins form. Something I was curious about for a while.

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In my opinion, the greatest biology discovery is the discovery of the nucleus. This discovery led scientists to the conclusion that the nucleus was there not just in plants, but also in animals and other organisms. The nucleus was first discovered as an opaque structure present in the middle of the cell of a plant.

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In  my opinion, the greatest biological discover is the discovery of protozoans, microorganisms, the cell nucleus which also lead to the discovery of bacteria which opened a gateway into more discovery of biological life and study, which enlarged the knowledge of biological life.

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In my opinion, the greatest biological discovery is the molecules that were found in water or any other non living organism. This stood out to me the most because this astonished the scientists at the time had no idea that dead things could be beaming with little living cells. A photocell was discovered by looking at a simple brass pin and observed it by looking through a tiny whole. This is also important because one of the first ways that we were able to look at the tiniest bacteria's or cells organization.

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In my opinion, the greatest biological discovery of neurotransmitters, for they are what lead to more accurate studies of the brain. The brain is what holds many of our neurons.

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In my opinion the discovery of the cell is the most important biological discovery. I feel like this is important because it has lead to a much better understanding of how living organisms function as well as further proof of evolution (Eukaryotic vs. Prokaryotic cells). Also, understanding how a cell functions, medical specialists can develop medication for diseases.

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In my opinion the biological greatest discovery was of the nucleus cell and the process of cell division.

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In my opinion, the greatest biological discovery is the nucleus. The nucleus is the central part of cells that contains genetic material. When the nucleus was discovered it opened a door to discover if other organisms and animals had a nucleus in their cells.  The reason why the nucleus is important is because it made scientists think about how every organism worked and which ones functioned similar.

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In my opinion, the greatest biological discovery is the discovery of microorganisms. This is incredibly crucial as the discovery of single cell organisms later on became the stepping stone to further understanding other more advanced organisms. Through this, we were able to classify animals further and further and fully explore and expand upon the idea of learning cells and the part they play. Before this discovery, we couldn't even pin point what exactly differentiated between a frog and a stone, but due to the discovery of microorganisms and cells, it has become clear and possible. Without the discovery of microorganisms and cells, essential parts of our knowledge of the world would not exist or would take years to discover.

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In my opinion, the greatest biological discovery is cells. This is because it lead us to more discoveries such as how things such as plants and animals work. This means we are able to better understand how living things, from plants to animals, function and live. However, not just animals and plants were now easier understood, but we also now know about what is contained within these cells and helped us better understand how everything alive grows, evolves, or becomes new life. An example is how two sex cells, an egg and a sperm, come together and reproduce.

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In my opinion, the greatest biological discovery is the microscope, which enabled the study of cells and microbiology.

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In my opinion, the greatest biological discover is the discovery of mitosis because it showed how cells multiply. When mitosis occurs, the cells split into two daughter cells that have the same amount of chromosomes.

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In my opinion the greatest biological discovery is the discovery of microscopic single cell organisms. I feel like it is the greatest biological discovery because that is when humans realized that there was a whole new world inside of every living thing,

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In my opinion, the greatest biological discovery is the discovery of cells because it leaded to even more discovers like how plants work also how plants and animals are connected.

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In my opinion, the greatest biological discovery was the discovery that cells were not irreversible. Scientists found out that if a cell begins to become a part of the heart, it can change and become a liver cell. These are called stem cells. They are important because stem cells can help fight disease. There are many diseases that occur because of a loss of a certain number of of cells in a body part. With the use of stem cells, other cells which exist in excess can be changed to become some of the cells that are needed. This stood out more than any of the other discoveries for me because they can be used in the modern world to save lives. This discovery may also be very prominent for hundreds of years to come.

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In my opinion, the greatest biological discovery is the discovery that there were more than just eukaryotes and prokaryotes. Scientist Carl Woese found that another kingdom of cells, archaea, existed, and this revolutionized biology. This discovery of archaea was very important due to the fact that it displayed that there was more to the world than simply two forms of cells. Archaea displayed that there were different types of cells that were still yet to be discovered. In fact, several scientists today believe that eukaryotic and prokaryotic cells were derived from archaea. So, the discovery of archaea also uncovered yet another way the cells of the world are connected.

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In my opinion the greatest biological discovery is the nucleus. The nucleus is the "brain" of most cell and contains genetic material, for plant and animal alike. This is important because the nucleus makes cells alike, therefore connecting living creatures.

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Anton Hook discovered the existence of microorganisms by using a very small microscope. He discovered many different types of microorganisms including bacteria and protozoa. By discovering this, it enlarged the world's understanding of biological life, and opened the door for further study and discovery.

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In my opinion, the greatest biological discover is......
And this is why.....