The main reason for the species extinction is for the ecological changes.
The blood carries carbon dioxide away from the cells
The natural selection among peppered moths of Manchester, England can be mainly attributed to to the abruptly increasing levels of Air Pollution in England as a result of thriving Industrial Revolution In the U.K.
Soot from power producing factories, etc resulted in complete eradication of lichens in the flora of the surrounding region.
The frequency of the newly evolved peppered moth increased as the dark colour was beneficial in a polluted environment like in Manchester.
Answer: Not getting enough physical activity can lead to heart disease—even for people who have no other risk factors. It can also increase the likelihood of developing other heart disease risk factors, including obesity, high blood pressure, high blood cholesterol, and type 2 diabetes.
Darwin suggests that an organism's struggle for existence is part of what determines why some species' characteristics survive and others become extinct. These adaptations illustrate how unique characteristics of particular organisms have developed, allowing them to thrive in their specific environments.
