Evolution

Question 1

Absolute dating

Answer 1

Method of measuring rates of decay of radioactive materials to determine how long ago and event occurred in an organisms life

Question 2

Radioactive elements

Answer 2

Breakdown or decay into non-radioactive elements at a very steady rate

Question 3

Half life

Answer 3

The length of time required for half of the radioactive atoms in a
sample to decay

Question 4

How old is the earth approximately

Answer 4

4.5 billion years

Question 5

Fossil

Answer 5

Preserved remains or evidence of an ancient organism

Question 6

Fossil record

Answer 6

A collection of fossils that represents the preserve collective history of the earths organisms

Question 7

what looked so similar in many organisms that made it difficult to tell them apart in the early stages of development

Answer 7

Embryos all looked alike

Question 8

Homologous structures

Answer 8

Same internal structure but a different outside structure

Question 9

Analogous structures

Answer 9

External structure is similar but internal is different

Question 10

Vestigial organs

Answer 10

Structures that serve no useful purpose or function in an organism

Question 11

Which 2-3 chemical compounds are found in all living organisms

Answer 11

DNA and/or RNA, and ATP

Question 12

Which five things/people had the biggest influences on Darwin

Answer 12

• HMS Beagle
• lyle
• farmers
• maltus
• lamark

Question 13

Evolution

Answer 13

The process by which modern organisms have descended from ancient organisms

Question 14

Evolutionary theory

Answer 14

A collection of carefully reasoned and tested hypothesis’ about how evolutionary change occurred

Question 15

Fitness

Answer 15

Combination of physical appearance and behavior that helps organism survive and reproduce in their environment

Question 16

Adaptation

Answer 16

Process that enables an organism to become better suited to their environment

Question 17

Natural selection

Answer 17

Process in nature that results in the fit organisms producing offspring

Question 18

Survival of the fittest

Answer 18

Individuals with characteristics best suited to their environment survive the struggle for existence other individuals lacking the characteristic best suited to their environment die or leave fewer offspring

Question 19

Gene

Answer 19

A segment of DNA that codes for a particular protein

Question 20

Species

Answer 20

A group of similar organisms that can breed with one another to produce fertile offspring in the natural environment

Question 21

Niche

Answer 21

A combination of organisms habitat and it’s role in the habitat

Question 22

Reproductive isolation

Answer 22

Separation of populations so that they do not interbreed to produce fertile offspring’s

Question 23

Autotroph

Answer 23

Able to produce their own energy

Question 24

Heterotroph

Answer 24

Could not rely on themselves to make their own energy

Question 25

Convergent evolution

Answer 25

Process by which unrelated organisms independently evolve similarities and adapting to similar environments

Question 26

Relative dating

Answer 26

Technique used to determine the age of fossils by comparing them with other fossils in different layers of rock