The First 20 Elements and The Difference Between Elements, Compounds and Mixtures. Standard. 1 – H – Hydrogen – Odorless, Colorless and Flammable Gas. 2 – He – Helium – Colorless and Odorless. 3 – Li – Lithium – Low Melting Point and Low Density. 4 – Be – Beryllium – High Thermal Conductivity and Non Magnetic.
Enzymes is a phycical protein folding.
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A quadrat is a frame (usually a square or a circle) of known area used to isolate a subset of the population. This subset will comprise one sample. Quadrats come in various sizes (and shapes) with the size selected determined by features of the organisms in the population to be sampled.
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Metals are strong, high density, good conductors of heat and electricity, and are also malleable and ductile. While non metals are brittle, dull looking, are poor conductors of heat and electricity, and are overall weaker.
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Telescopes, spectroscopes, space probes.
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