Evolution #1

Natural selection results in change in a population's (a)   traits over time.

• inherited
• acquired

Brown mice survive and reproduce in their desert environment better than white mice because owls can see and eat the white mice more easily. In this situation, what part of the environment is doing the selecting?

• predator

• soil composition

• mouse fur color

• sexual preferences

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

• natural selection

• adaption

• speciation

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

• People selectively breeding hamsters for size.

• Insect populations developing resistance to certain pesticides.

• Bacteria becoming resistant to antibiotics.

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

Eyes that can see in the dark is a(an) _______ inherited by nocturnal animals.

• adaptation

• acquired trait

• learned ability

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

• vestigial

• analogous

• homologous

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

• analogous

• homologous

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

• analogous

• homologous

The solidified remain or imprint of a once living thing are called:

• Fossils

• Homologous Structures

• Vestigial Structures

• DNA

What type of evidence is shown in the image above?

• Fossils

• Vestigial structures

• Homologous Structures

• DNA