Evolution

Question 1

scientists who studies fossils

Answer 1

Paleontologists

Question 2

method used to determine the age of rocks with other layers

Answer 2

relative dating

Question 3

oldest layers of rock found at the bottom, youngest found at the top

Answer 3

law of superposition

Question 4

uses the decay of radioactive isotopes to measure age of rock

Answer 4

radiometric dating

Question 5

half-life

Answer 5

amount of time required for half of a radioactive isotope to decay

Question 6

smallest unit of geological time lasting several million years

Answer 6

epoch

Question 7

unit of geological time consisting of two or more periods

Answer 7

era

Question 8

divisions of geological time lasting tens of millions of years

Answer 8

period

Question 9

directed breeding to produce offspring with desired traits

Answer 9

artificial selection

Question 10

excess reproduction variations, inheritance, advantages of specific traits in an environment

Answer 10

natural selection

Question 11

cumulative changes in groups of organisms through time

Answer 11

evolution

Question 12

idea life arises from nonliving things

Answer 12

spontaneous generation

Question 13

anatomically similar structures, inherited from a common ancestor

Answer 13

homologous structure

Question 14

reduced form of a functional structure that indicates shared ancestry

Answer 14

vestigial structure

Question 15

structure that has the same function but different construction and not inherited from ancestor

Answer 15

analogous structure

Question 16

measure of traits relative contribution to following generation

Answer 16

fitness

Question 17

inherited characteristic of a species that develops over time in response to environment to survive

Answer 17

adaptation

Question 18

each characteristic of an organism

Answer 18

trait

Question 19

evolutionary history of a species or group branching out

Answer 19

cladogram/phylogentic tree