Evolution

Natural Selection results in change in population's ______ over time.

• inherited

• acquired

A phenotype that improves an organism’s chance of survival in their environment is considered a(n)

• natural selection

• speciation

• adaptation

Which of the following is not an example of natural selection?

• People selectively breeding hamsters for size.

• Bacteria becoming resistant to antibiotics.

• Insect populations developing resistance to certain pesticides.

• Male birds of certain species inheriting colorful feathers that are more attractive to females.

The pelvic bone of whales is not needed for movement within the water. This is an example of a(n) ______________ structure.

• Vestigial Structure

• Homologous Strucure

• Analagous Structure

The forelimbs of mammals have similar anatomy because these groups descended from a recent common ancestor. Their bone structure is an example of a(n) ______________ structure.

• Vestigial Structures

• Homologous Structures

• Analogous Structures

Many different groups of organisms have wings, even though they do not share a recent common ancestor. This is because they evolved in environments with similar selective pressures. Wings are an example of a(n) ______________ structure.

• Vestigial Structure

• Analogous Structure

• Homologous Structure

Which best describes the phrase survival of the fittest?

• 
  strongest in a population are most successful

• those that can survive and reproduce are most successful

• fastest in a population are most successful

• those that can live the longest are most successful

​ _______selection is when humans choose traits of an organism like breeding dogs

• Artificial

• Natural

• Sexual

• Reproductive

Pistol shrimp have protective eye pocket tissue, but some shrimp do not have this trait. What role will natural selection most likely play in this trait within the population?

• the frequency of the allele for eye pocket tissue will increase in the population because it is beneficial

• 
  the frequency of the allele for eye pocket tissue will not change since only a few individuals do not have it

• the frequency of the allele for eye pocket tissue will decrease in the population because it is beneficial

• Natural selection will lead to the extinction of the shrimp without eye pocket tissue

This scientist came up with the idea of natural selection.

• Jean Baptiste Lamarck

• Charles Darwin

• Gregor Mendel

• Thomas Malthus