Natural Selection Stemscopedia with questions

What is the main idea of Charles Darwin's theory of natural selection?

• Organisms with traits well suited to their environments have greater success surviving and reproducing.

• All organisms have the same chance of survival regardless of their traits.

• Natural selection is a process that occurs only in animals, not plants.

• Traits are not inherited from parents to offspring.

Which of the following is an example of adaptation by natural selection?

• Yellow beetles becoming more common as red beetles are eaten.

• All beetles having the same color regardless of the environment.

• Beetles changing color randomly without environmental influence.

• Beetles choosing their color based on preference.

Natural selection leads to the predominance of certain traits in a population and the ______ of others.

The discovery of ______ in 1928 changed human medicine forever.

Explain how genetic variation contributes to natural selection.

Tags

Analyzing

Describe how overuse of antibiotics can lead to antibiotic resistance in bacteria.

Tags

Understanding

What role does competition play in natural selection?

Tags

Understanding

A population of light-colored mice was moved from the Sand Hills to a wooded area with dark soils. What do think would happen to this population after 10,000 years or longer?

How do you think scientists discovered that the flowering time of the field mustard had changed?

People spray pesticides on crops to kill insects that eat and destroy the crops. However, these insects are becoming resistant to the pesticides. Explain how this could happen.