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Natural Selection – Evolution and Biology

By |2017-05-29T17:09:11+00:00May 29th, 2017|Biology|

The feet of a person with six toes on each foot Whenever protons and electrons bump into each other, or atoms bump into each other, or molecules bump into each other, or prokaryotic cells bump into each other, or DNA molecules inside cells divide - whenever any of these things happen, they can happen [...]

What is RNA? Cell biology and evolution

By |2018-04-16T00:39:56+00:00May 29th, 2017|Biology|

RNA molecule: A single strand of RNA, seen under an electron microscope The RNA molecule was probably one of the earliest steps towards life on Earth. RNA is short for "ribonucleic acid". That's a very long, complicated molecule made out of amino acids linked together. The amino acids are made out of atoms of [...]

Lipids projects – Oil and Water – Biology and Chemistry Experiments

By |2018-04-16T10:23:03+00:00May 28th, 2017|Biology, Chemistry|

Oil and water You can easily see for yourself how the amino acids, trying to get as far away from the water as possible, formed into little spheres or bubbles. Just take a glass of water and put it on the table. Then slowly pour in some vegetable oil. You'll see that the [...]