Evolution

Question 1

evolution

Answer 1

the process by which species have changed over time

Question 2

theory

Answer 2

an explanation, supported by many observations and/or experiments, that can be used to accurately explain related occurrences

Question 3

fossil record

Answer 3

a collection of fossils used to represent Earth’s history

Question 4

geologic time

Answer 4

Earth’s history as revealed by layers of rock

Question 5

natural selection

Answer 5

the process by which the organisms that are best adapted to a specific environment survive and produce more offspring that organisms that are not as well adapted

Question 6

overproduction

Answer 6

the potential for a species to increase it’s numbers beyond the area’s carrying capacity

Question 7

genetic variation

Answer 7

the normal differences found among offspring

Question 8

adaptive value

Answer 8

any traits that helps an organism survive and reproduce under a given set of environmental conditions

Question 9

extinction

Answer 9

the disappearance of all members of a species from earth

Question 10

mutation

Answer 10

any alteration in the sequence of DNA