Acatalyzed reaction will have a activation energy, and this leads to a in the reaction rate. a) lower, decrease b) lower, increase eliminate c) higher, decrease d) higher, increase

B) lower, increase

Explanation:

he initial energy input is required to start a reaction is called activation energy. The activation energy lowers the energy required to chemical react happens. The activation energy is lowered by an enzyme which is called a biological catalyst. Thus, the enzyme lowers the activation energy and speeds up the rate of reaction. Reducing activation energy and speeds up the rate of reaction is called catalysis.

many phylogenetic trees have a single lineage at the base representing a common ancestor. a lineage that evolved early from the root and remains unbranched is called basal taxon. when two lineages stem from the same branch point, they are called sister taxa.

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explanation:

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