Scientists Have Studied, in Detail, the Evolution of the Peppered

question 9

Essay

Scientists have studied, in detail, the evolution of the peppered moth, Biston betularia, over the last two hundred years. The peppered moths rest on tree trunks and are a tempting treat for birds in the area. In the mid -1800's the trees in their England habitat were covered with lichens, which are a light, grayish - green color. Although color variations occurred, the vast majority of the moths were light-colored. Because their light coloration effectively camouflaged them against the lichens-covered trees, they were not as easily seen by birds as darker colored moths. The light colored moths flourished.
The environment changed, as the Industrial Revolution progressed. By 1900, the lichens had died and trees were coated with soot due to the industrial pollution. The lighter colored moths were no longer 'hidden' in their environment, and in fact, were easily seen by their predators. Their numbers dwindled. At the same time, the darker-colored moths flourished because of their ability to hide on the darkened trees.
As environmental standards have been implemented, environmental conditions have shifted, allowing lichens to grow on tree trunks.
a. What type of selection is this?
b. What is the agent of selection?
c. What alleles were favored in the clean environment? The polluted environment?

Comprehend the criteria and discretion involved in having a case heard by the U.S. Supreme Court.

Distinguish the roles and jurisdictions of U.S. district courts within the federal system.

Understand how jurisdiction affects the authority of courts.

Acknowledge the supremacy of the U.S. Constitution in the legal system.

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Definitions:

Affluent Society

refers to a society that enjoys a higher standard of living due to significant wealth accumulation, leading to a focus on consumerism and allocation of resources beyond basic needs.

Economic Problem

The fundamental challenge of meeting the unlimited needs and desires of individuals with limited resources, necessitating choices and priorities in allocation.

Standard Of Living

The level of prosperity, amenities, material possessions, and basic needs accessible to a specific social class or region.

Economic Growth

An increase in a country's output of goods and services over time, typically measured by changes in real GDP, indicating improvements in living standards and economic health.