The word anabolism refers to constructive, buildup, or synthesis reactions while the word catabolism refers to destructive, breakdown, or digestive reactions. What does it mean to say that in a cell, catabolism fuels anabolism?

Anabolic reactions need energy.

Explanation:

Anabolic reactions (like the build up of fatty acids) are active processes and need energy. Catabolic processes like respiration will provide the ATP required to build up macromolecules. Thus, catabolism fuels anabolism.

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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