natural selection

Question 1

adaptation

Answer 1

adaptations may be physical such as a long neck or striped fur

Question 2

species

Answer 2

is a group of organismsms members of the same species

Question 3

evolution

Answer 3

scientists continue to develop theories to explain exactly how evolution happens

Question 4

fossill

Answer 4

fossils can be complete organisms parts of organisms

Question 5

fossil record

Answer 5

the fossil record organizes fossils by their estimated ages and physical similarities

Question 6

traits

Answer 6

a genetically determined characteristics

Question 7

selective breeding

Answer 7

the human practice of breeding animals or plants that have certain desired characteristics

Question 8

natural selection

Answer 8

the process by which individuals that are better adapted

Question 9

generation time

Answer 9

the period between the birth of one generation

Question 10

speciation

Answer 10

the formation of new species as a result of revolution

Question 11

relative dating

Answer 11

any method of determining whether a event or object

Question 13

absolute dating

Answer 13

any method of measuring age of an object

Question 14

geologic time scale

Answer 14

the standard method used to divide the Earth’s long natural history

Question 15

extinct

Answer 15

describes a species that has died out completely

Question 16

plate tectonics

Answer 16

the theory that explains how large pieces of the Earth’s outermost layer

Question 17

precambrian time

Answer 17

the period in the geologic time scale from the formation of the earth to the beginning of the Paleozoic era,

Question 18

mesozoic era

Answer 18

the geologic era that lasted from 248 million to 65 million years ago: