Evolution AP Biology

The similarities of organisms in which two areas numbered in the picture provide the best evidence for common ancestry?

• and 2

• and 4

• and 6

• and 8

Tags

NGSS.MS-LS4-2

NGSS.MS-LS4-3

The fossil record shows that:

• Most species have not evolved.

• Some species are evolutionary transitions between major groups of organisms.

• All species are today just as they were when they were created.

• All of the above.

Tags

NGSS.MS-LS4-1

How do fossils support evolution?

• Individual species disappear and reappear in the fossil record over time.

• Organisms in the fossil record are identical to living organisms.

• The fossil record provides evidence that all organisms developed at the same time.

• The fossil record provides evidence that organisms have changed over time.

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

What best describes the hind leg bones seen in the whale?

• The bones are analogous structures to the fins of living fish.

• The bones are vestigial structures that had a function in an ancestor.

• The bones are homologous structures to the wings of butterflies.

• The bones are fossil structures from an extinct ancestor.

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

Which of the following statements gives the most likely explanation for the presence of two very similar species of squirrels living on opposite sides of the Grand Canyon?

• One squirrel traveled across the canyon and started a new population on the other side.

• Members of one single squirrel species were geographically separated by the formation of the canyon.

• One squirrel traveled across the canyon and interbred with a different population on the other side.

• Members of two different squirrel species migrated from two different places to opposite sides of the canyon.

Tags

NGSS.MS-LS4-2

Amino acid sequences can be compared to determine relationships between species. When comparing the sequences provided, which two organisms are humans most closely related to?

• horses and gorillas

• gorillas and chimpanzees

• chimpanzees and zebras

• zebras and horses

Tags

NGSS.MS-LS4-2

The appendix, which is not needed to survive, is conisdered to be a

• Homologous Structure

• Analagous Structure

• Vestigial Structure

• Homology

Tags

NGSS.MS-LS4-2

Which of the following have a similar structures but have a different function in each organism and are considered homologous structures?

• A dolphin fin and a shark fin

• Human fingernails and monkey fingernails

• Front leg of a cat and the wing of a bat

• The wing of a bumble bee and the wing of a bird

Tags

NGSS.MS-LS4-2

Which of these descriptions is an example of an unused body structure?

• a bat’s wing that enables it to fly

• the tiny leg bones found in snakes that have no legs

• the front legs of a dog that supports its weight as it walks and runs

• the tentacles of an octopus that aid it in movement and catching prey

Which of the following best describes the tiny legs whales have?

• structures that grow and improve in function as they are used

• structures that function at certain times of the year

• structures that will become adaptations when the environment changes

• structures that have lost all or most of their function over time