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On a branching diagram, where should existing species be placed?Multiple choice question.At the base of the treeOn larger branchesOn twigsAt the nodes

Question

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Solution

Break Down the Problem

  1. Identify what a branching diagram represents in biology.
  2. Determine the significance of each option in relation to species placement.

Relevant Concepts

  • A branching diagram (or phylogenetic tree) represents evolutionary relationships among species.
  • Existing species should be placed according to their evolutionary lineage.

Analysis and Detail

  1. At the base of the tree: This would imply that the existing species are the earliest forms of life, which is not accurate since there have been many evolutions since the base.
  2. On larger branches: Larger branches represent more general groups or ancestors of multiple species rather than specific existing species.
  3. On twigs: This option suggests that existing species should be on the smaller, more specific branches. This is where species that have evolved from ancestral lines are typically placed.
  4. At the nodes: Nodes represent points where species diverged from their common ancestors and do not represent the existence of current species.

Verify and Summarize

The most fitting place for existing species in a branching diagram is on the twigs, as they represent the end points where current species are located, indicating their evolutionary outcome from shared ancestors.

Final Answer

On twigs. Existing species are placed at the twigs of a branching diagram, representing their existence as outcomes of evolutionary processes.

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