In a Population of Parrots on an Island,there Is Considerable

question 33

Multiple Choice

In a population of parrots on an island,there is considerable variation in beak size.Parrots with small,thick beaks can efficiently eat locusts (insect) ,while birds with long,thin beaks can efficiently eat beetles.Both food types are available on the island.Which of the following types of selection,and effects on phenotypic variation would you expect to see?

• A)Directional selection;phenotypic variation decreases.
• B)Directional selection;phenotypic variation increases.
• C)Disruptive selection;phenotypic variation decreases.
• D)Disruptive selection;phenotypic variation is maintained.
• E)Directional selection;phenotypic variation remains the same.

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Definitions:

Negative Body

Often refers to negative body image, a subjective perception where an individual sees their body in a negative light.

Poor Nutrition

A condition where the intake of nutrients is insufficient to meet the body's needs, leading to health issues and deficiencies.

Sex Glands

Organs in the body responsible for producing sex hormones and gametes, crucial for reproductive functions.

Secondary

Pertaining to the second level or stage in a sequence or process.