Evidence of Evolution

Question 1

What is biogeography?

Answer 1

Biogeography is the scientific study of the geographic distribution of organisms based on both living species and fossils

Question 2

What ship did Darwin travel on?

Answer 2

The Beagle

Question 3

Geographically close environments are more likely to be populated by _________ species compared to geographically separate population.

Answer 3

Related

Question 4

Animals found on islands often resemble……

Answer 4

They often resemble animals found on the closest continent.

Question 5

Who were islands populated by?

Answer 5

They were populated by species that arrived by water or air.

Question 6

There are many unique species on islands that do not inhabit any other area of the world. Why is that?

Answer 6

Over time these isolated species evolve into new geographically isolated species.

Question 7

What are homologous features?

Answer 7

They are structures with a common evolutionary origin that may serve different functions in other species. They are inherited by a common ancestor.

Question 8

Is it true or false that an organisms body parts are more likely to be modifications of ancestral body parts rather than entirely new features?

Answer 8

True

Question 9

Birds wings and reptiles legs have two different purposes. However they both share a similar shape and construction. Why is this?

Answer 9

These birds and reptiles will have a common ancestor.

Question 10

What are analogous features?

Answer 10

They are structures that perform similar functions but are not shared by a common ancestor.

Question 11

Give an example of an analogous features in two different species.

Answer 11

Bird wings and insect wings perform similar functions however they do not share a common ancestor.

Question 12

What is embryology?

Answer 12

Embryology is the study of early, pre-birth stages of an organism’s development and can be used to determine evolutionary changes between animals.

Question 13

Fish, chickens, pigs, and humans are all vertebrates. What do these similarities point to?

Answer 13

They point to all four species sharing a common ancestor at one point.

Question 14

Vertebrates exhibit ______________ structures during certain phases of development but become complete different structures in adult forms.

Answer 14

Homologous

Question 15

How is the fossil record important?

Answer 15

The fossil record is important information for determining the ancestry of organisms and patterns of evolution.

Question 16

Fossils that are found in younger rock are more similar to species alive today. Why is this true?

Answer 16

This is true because the younger layers are the most recent and the older layers are the deepest. If this is the case, a fish from a younger rock is more likely to look like todays fished compared to a fish that may have been around a thousand years ago.

Question 17

Are ancestor species fossils found in younger or deeper layers of strata?

Answer 17

They are found in the deeper layers of rock.