AP Biology Evidence of Evolution

What is biological evolution?

• Is made up of all the fossils ever discovered on Earth

• Is the preserved evidence of the activity of an organism

• Are the remains or evidence of once-living organisms

• Is the change over time in populations of related organisms

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

NGSS.MS-LS4-4

Natural Selection

• Is a slight difference in an inherited trait of individual members of a species.

• The breeding of organisms for desired characteristics.

• Is an inherited trait that increases the organism’s chance of surviving and reproducing in its environment.

• The process where organisms that are best suited to their environment survive and pass on their genetic traits.

Tags

NGSS.MS-LS4-4

Adaptation

• Is a slight difference in an inherited trait of individual members of a species.

• Is an inherited trait that increases the organism’s chance of surviving and reproducing in its environment.

• A person who studies plants and animals by observing them.

• The resemblance of one species to another species.

Tags

NGSS.MS-LS4-2

NGSS.MS-LS4-4

Mimicry

• The resemblance of one species to another species.

• Is a slight difference in an inherited trait of individual members of a species.

• Is an inherited trait that increases the organism’s chance of surviving and reproducing in its environment.

• A person who studies plants and animals by observing them.

Tags

NGSS.MS-LS4-2

NGSS.MS-LS4-4

Selective Breeding

• Is a slight difference in an inherited trait of individual members of a species.

• Is an adaptation that enables a species to blend in with its environment.

• The breeding of organisms for desired characteristics.

• The resemblance of one species to another species.

The moth wing and the bat wing are example of structures.

(a)  

• Analogous

• Homologous

• Vestigial

• Fossil

Tags

NGSS.MS-LS4-2

Which of the pictures above would be examples of homologous structures? (pick 2)

• 1

• 2

• 3

Tags

NGSS.MS-LS4-2

The similarities of bone structure in the diagram provide evidence of what?

• The organisms probably use there forelimbs for the same thing.

• The organisms evolved from a common ancestor.

• The organisms have the same DNA.

• All vertebrate species have identical forelimbs.

Tags

NGSS.MS-LS4-2

How do fossils provide evidence that evolution has happened on Earth?

• Fossils show how the sizes of certain animals has changed drastically over millions of years

• Fossils show that some species have gone extinct

• Fossils show how life forms present today are different than those from the past

• Different sedimentary rock layers provide evidence for how the environment has changed over time

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

_________________ show clear changes in an organism over time, the environment organisms lived in, the time period the organism lived in, and where the organism lived.

• DNA

• Vestigial structures

• Fossils

• Homologous structures

Tags

NGSS.MS-LS4-1