Enzymes (Catalysts) lower the required activation energy, allowing the reaction to happen more quickly.
Answer:
Common examples include carbon, sulfur, oxygen, iron, copper, aluminium. Elements are represented by symbols. Compounds are substances made from atoms of different elements joined by chemical bonds. They can only be separated by a chemical reaction.
Explanation:
Substances can be categorised as either elements or compounds. Both of these are made up of atoms, the only difference is an element is made of one type of atom whereas compounds are made of two or more different types of atoms.
Melanin
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The correct answer should be Sensory Neurons, also known as afferent neurons. They <span>transport information to the integrating center.</span>
