the 2o amino acids vary structure by the r-group , otherwise all amino acids are in the same structure, all amino acids have carboxyl group , amino group and a r-group and a hydrogen which are all bonded to a central carbon,
73.7% idk beacuse this is a guess
Answer:
Iron is a lustrous, ductile, malleable, silver-gray metal (group VIII of the periodic table). It is known to exist in four distinct crystalline forms. Iron rusts in damp air, but not in dry air. It dissolves readily in dilute acids.
Explanation:
Molten Lava, and not solid like the crust.
Modern GM is quicker and more precise than long term plant breeding.