Positive ions from a base and negative ions from an acid form a it helps for example ypu have positive ions right well take my smart advice well the positive ions and the negative ions they combine together to make sulphour
Enzymes have an attachment site called the active site for the enzyme and substrate <span>to join.
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Phosphorus moves in a cycle through rocks, water, soil and sediments and organisms.
Traits may be determined by multiple genes.
