Use the Following Description to Answer the Question

question 33

Multiple Choice

Use the following description to answer the question.
On the volcanic, equatorial West African island of Sao Tomé, two species of fruit fly exist. Drosophila yakuba inhabits the island's lowlands and is also found on the African mainland, located about two hundred miles away. At higher elevations, and only on Sao Tomé, is found the very closely related Drosophila santomea. The two species can hybridize, though male hybrids are sterile. A hybrid zone exists at middle elevations, though hybrids there are greatly outnumbered by D. santomea. Studies of the two species' nuclear genomes reveal that D. yakuba on the island is more closely related to mainland D. yakuba than to D. santomea (2n = 4 in both species) . Sao Tomé rose from the Atlantic Ocean about 14 million years ago.
The observation that island D. yakuba are more closely related to mainland D. yakuba than island D. yakuba are to D. santomea is best explained by proposing that D. santomea ________.

• A) descended from a now-extinct, non-African fruit fly
• B) arrived on the island before D. yakuba
• C) descended from a single colony of D. yakuba, which had been introduced from elsewhere, with no subsequent colonization events
• D) descended from an original colony of D. yakuba, of which there are no surviving members. The current island D. yakuba represent a second colonization event from elsewhere

Comprehend the factors affecting changes in land rent and demand for land.

Explore the impact of technological advancements and market changes on the value and use of land.

Understand the significance and arguments for and against a single tax on land as proposed by Henry George.

Understand the concept of economic rent and its incentive and allocation functions.

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Definitions:

Daily Stimulation

Refers to activities or experiences that provide regular mental or physical engagement.

Play Materials

Items and resources used to facilitate play and encourage learning and development in children.

Piaget

Refers to Jean Piaget, a Swiss psychologist known for his pioneering work in the study of child development and his theory of cognitive development.

Formal Operational Stage

A phase in Jean Piaget's theory of cognitive development where individuals (around age 11 and older) gain the ability to think abstractly and reason logically.