A: Morphological Phylogeny. B: Molecular Phylogeny

question 57

Multiple Choice

A: Morphological phylogeny.

B: Molecular phylogeny.
-According to the phylogenies depicted in the previous pair of figures, if one were to create a taxon called Radiata that included all animal species whose members have true radial symmetry, then such a taxon would be

• A) paraphyletic.
• B) polyphyletic.
• C) monophyletic.
• D) a clade.
• E) More than one of these responses are correct.

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Definitions:

Natural Monopoly

A market condition where a single firm can provide a good or service at a lower cost than any competitors, due to economies of scale.

Public Ownership

Public ownership denotes ownership by the government or a public entity, often applied to assets, utilities, or enterprises meant for public benefit.

Perfectly Competitive Markets

A market structure characterized by many buyers and sellers, homogenous products, and no barriers to entry or exit.

Monopoly Firms

Companies that are the sole providers of a product or service in a market, having no close substitutes and controlling market prices.