In a Population of Whales,there Is Considerable Variation in the Height

question 33

Multiple Choice

In a population of whales,there is considerable variation in the height of the dorsal fin.Over the course of time,many whales develop very long dorsal fins and many develop very short dorsal fins,but a few whales exhibit an intermediate height in their dorsal fin.What is the most likely conclusion about the variation in size of dorsal fins? 

• A) The population is undergoing directional natural selection. 
• B) The population is undergoing disruptive natural selection. 
• C) The population is undergoing discontinuous natural selection. 
• D) The population is undergoing diversifying natural selection.

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Definitions:

Stomach

A digestive organ that breaks down food, mixing it with gastric juices to begin the digestion process.

Liver

A vital organ in the human body that performs essential functions like detoxification, protein synthesis, and production of biochemicals necessary for digestion.

Spleen

The spleen is an organ located under the ribcage and above the stomach in the left upper quadrant of the abdomen, involved in filtering blood, storing white blood cells, and destroying old red blood cells.

Brachiocephalic Vein

A large vein in the upper chest that forms from the union of the internal jugular and subclavian veins and carries blood to the heart.