The Ozone Layer prevents Ultraviolet rays (from the Sun) from reaching Earth.
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The fossil record. Fossils of the same kind were found in several continents, supporting the idea of continental drift.
Origins of life number 4 is living beings
Dynamic equilibrium: Particles are moving into and out of the cell, but their concentrations remain stable.
Enzymes and antibodies are proteins.
Amino acids are the building blocks of protein. It is a strong of linearity that can be thousands in length. Moreover, the formation of the amino acid and its system is influenced by its genes’ nucleotides arrangement. <span> </span>
