If Each Number Represents a Population,the Figure Above Illustrates an Example

question 19

Multiple Choice

If each number represents a population,the figure above illustrates an example of

• A)a peripherally isolated species.
• B)reproductive isolation.
• C)a hybrid zone.
• D)a ring species.

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Definitions:

Placentals

Mammals that nourish their developing fetus via a placenta, an organ that facilitates the exchange of nutrients, gases, and wastes between the mother and fetus.

Notochord

A flexible rod-shaped structure that provides support in the embryonic stages of all chordates, including humans.

Tunicates

Marine invertebrates, also known as sea squirts, that are part of the subphylum Tunicata, characterized by a tough outer tunic and filter-feeding mode of nutrition.

Lancelets

Small marine animals belonging to the subphylum Cephalochordata, characterized by their fish-like shape and a notochord extending the length of their body.