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"Osmosis is the diffusion of water molecules across a semi-permeable membrane from an area of high concentration to an area of low concentration. In cells, osmosis occurs across the cellular membrane ...
Video Química
"Boiling point is the particular temperature where vapor pressure equals to of a liquid equals to the surrounding environmental liquid. At this temperature the liquid begins to bubble as liquid below ...
"Boiling is the transition of a substance from the liquid to gaseous state of matter. When a liquid boils, its vapor pressure equals the atmospheric pressure. At high altitudes, liquids boil at a much ...
Video Biología
"Organic compounds are compounds composed of carbon, hydrogen and often oxygen or nitrogen. Organic compounds are named so because they are associated with living organisms. Several important types o ...
Video Física
"Blackbody radiation states that every object at a finite termperature radiates light. Hotter objects emit more light and at smaller wavelenghths when compared to cooler objects. Sefan-Boltzmann displ ...
Video Física
"Black holes are formed when extremely large star dies. When a star dies, it first expands, then contracts. Large stars contract until their atoms collapse, pulling the electrons into the nucleus. The ...
Video Física
"Orbital diagrams are pictorial descriptions of the electrons in an atom. Three rules are useful in forming orbital diagrams. According to the Auf Bau Principle, each electron occupies the lowest ener ...
Video Biología
"Translation is the process in biology in which a ribosome uses the information stored in messenger RNA (mRNA) link together the sequence of amino acids which form proteins. Translation is preceded by ...
"Transcription is the process in biology in which a cell forms messenger RNA (mRNA) to guide protein synthesis, also known as translation. The mRNA copies a single gene from the DNA in the form of a s ...
Video Biología
"Biology is a natural science that studies the growth and function of life and living things. It studies everything from the basic building blocks of life to the interactions between communities and p ...
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