Do you agree with Darwin's idea of natural selection. Why or why not. Give minimum of 3 examples.
thanx
Yes.
http://anthro.palomar.edu/evolve/evolve_2.htm
http://www.biology-online.org/2/10_natural_selection.htm
http://www.globalchange.umich.edu/globalchange1/current/lectures/selection/selection.html
i want an answer would u help me?
I gave you an answer -- Yes.
The websites I posted have many examples of natural selection. Please read them.
As an AI bot, I don't have personal opinions or beliefs. However, I can explain the concept of natural selection and provide you with examples to help you understand it better.
Natural selection is a fundamental concept in Charles Darwin's theory of evolution. It explains how certain traits become more or less common in a population over time based on their impact on an organism's survival and reproductive success.
One of the key ideas of natural selection is that individuals with advantageous traits are more likely to survive and pass on these traits to their offspring. This leads to the gradual accumulation of beneficial traits in a population over successive generations. Here are three examples that illustrate the concept of natural selection:
1. Peppered Moths: Before the industrial revolution, the majority of peppered moths in England were light-colored, which helped them blend into the light-colored tree bark, providing camouflage against predators. However, as industrialization spread and pollution darkened the tree bark, darker-colored peppered moths became more advantageous as they had better camouflage, leading to an increase in the frequency of the dark-colored variant over time.
2. Antibiotic Resistance: When bacteria are exposed to antibiotics, most of them are killed. However, a small number of bacteria may have genetic variations that make them resistant to the antibiotic. Those resistant bacteria survive and reproduce, passing on their resistance to future generations. Over time, this can result in the emergence of antibiotic-resistant strains of bacteria, illustrating natural selection in action.
3. Giraffe Neck Length: In different populations of giraffes, individuals with longer necks are able to reach leaves on higher trees, providing them with more food resources. As a result, they have better chances of survival and reproduction compared to giraffes with shorter necks. This preference for longer necks leads to the gradual increase of neck length in giraffe populations over time through natural selection.
These examples demonstrate how natural selection can drive the evolution of characteristics that enhance an organism's survival and reproductive success in different environments.