Either Give an Example or Prove That There Are None

question 57

Short Answer

either give an example or prove that there are none.
-A simple digraph with indegrees 0, 1, 2, 2 and outdegrees 0, 1, 1, 3.

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Definitions:

Representative Clade

A group of organisms that consists of a common ancestor and all its lineal descendants, representing a single branch on the tree of life.

Supergroup

A high-level taxonomic rank in the classification of organisms, above kingdom, proposed to accommodate the phylogenetic relationships.

Forams

are short for foraminifera, a large group of amoeboid protists with calcareous shells, used in geological dating and paleoclimate estimation.

Representative Clade

A group of organisms that includes an ancestor and all of its descendants, representative of a larger evolutionary group.