Chapter 13 - ReviewEvolution: Evidence of

Change

Charles Page High School

Dr. Stephen L. Cotton

Chapter 13 - ReviewWhat does potassium-40

ultimately decay into argon-40.Fossil trees are petrified when

the wood is replaced with rock.Later stages of embryos of

related organisms begin to show marked differences because of mutations.

Chapter 13 - ReviewScientists estimate that the

number of species alive today is about 0.1%.

A series of fossils shows the development of the horse over a period of Epoch.

Chapter 13 - ReviewWhat evidence suggests that the

deserts of the American southwest were once covered by seas? Shark Teeth

What is the longest period of time in the geologic time scale?Precambrian

Carbon-14 will change into nitrogen-14.

Chapter 13 - ReviewWhere is the best place to search for

fossils?

Sedimentary RockDarwin called the combination of

physical traits and behaviors that help organisms survive and reproduce fitness.

In a rock column, the fossils in the upper layers must be youngest.

Chapter 13 - ReviewUranium-238 will decay into lead-206.All the fossils that have been collected

around the world make up the fossil record.

The early stages of embryonic development remain unchanged because the mutations that develop in these stages are homologous structures.

Chapter 13 - ReviewThe energy-storing compound

found in all living things is ATP.The long, slow process of

change in species over time is called evolution.

Which is least closely related? Radioactive element; stable element; radioactive decay

Chapter 13 - ReviewAccording to Darwin, any

inherited characteristic that increases an organism’s fitness for survival is a(n) adaptation.

Scientists who specialize in the study of rocks and changes in the earth are called paleontologist.

Chapter 13 - ReviewScientists would be very

surprised if they found a complete fossil.

Scientists do not expect to find large animal fossils in amber.

Radioactive dating is an example of absolute dating.

Chapter 13 - ReviewHow did Darwin explain the similarity of

structure among living organisms? Common ancestor

The wings of a bird and the front legs of a dog are called homologous structures.

A scientist has the best chance of finding fossil impressions of the soft parts of organisms in rock.

Chapter 13 - ReviewIn humans, muscles that move the

ears are vestigial organs.Can evolutionary changes involve

the modification of primitive limbs into tails? no

The presence of 4 tiny leg bones in pythons is evidence that snakes evolved from four legged ancestor.

Chapter 13 - ReviewAccording to Darwin, the long

neck and legs of the giraffe would be called adaptations.

Which of the following did not influence Darwin? The work of Lyell; the nature of DNA; his collection of specimens; his trip on the H.M.S. Beagle

Chapter 13 - ReviewAs sediment piles up under water,

pressure compresses the sediment into rock

According to Darwin, fitness arises through the process of adaptations

Scientists believe that of all species ever alive, 99.9% are now extinct

Chapter 13 - ReviewDarwin argued that if you look far

enough back in time, you will see that all species have a common descent.

To determine the age of the oldest rocks, geologists use what radioactive material? Uranium-238 & Potassium-40.

What would it mean if marine fossils were found in a mountain? There was once an ocean present there.

Chapter 13 - ReviewGiant fossils ferns in Canada is

interpreted to mean Canada was once a forest.

The sea floor can be pushed up into mountains by forces upon the Earth

Is the DNA of eukaryotic organisms totally unique in structure? NO

Chapter 13 - ReviewIn the past, how did people

explain major geologic features of the Earth? religion