An energy pyramid shows the amount of what available at each feeding level in an ecosystem.

the answer to your question is energy

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.

can i get the brainliest pls

explanation:

this would be a math