Evolution

Question 1

adaption

Answer 1

change in a organisms structure or function to better adapt for survival in it’s environment

Question 2

allele

Answer 2

variation of traits, alternative form of gene

Question 3

analogous structure

Answer 3

body part found in many species that are similar in function but different in structure

Question 4

embryology

Answer 4

branch of zoology that studies early development of living things

Question 5

fossils

Answer 5

remaining traces of an organism

Question 6

founder effect

Answer 6

decrease in genetic variation caused when a new population forms of small individuals

Question 7

genetic drift

Answer 7

change in allele frequencies of a population

Question 8

gradualism

Answer 8

new species arise as the result of genetic mutations that cause a trait to change over generations

Question 9

homologous structure

Answer 9

similar in structure but different in functions of different organisms

Question 10

isolating mechanisms

Answer 10

behaviors, different in body structures, or genetics that prevent two different species from breeding

Question 11

migration (genetic)

Answer 11

permanent movement of genes resulting in a change of allele frequencies

Question 12

mutation

Answer 12

change in DNA sequence, may result in new traits

Question 13

natural selection

Answer 13

organisms with certain traits have a better chance to survive and reproduce

Question 14

punctuated equilibrium

Answer 14

speciation occurs suddenly and rapidly followed by long periods with little evolution

Question 15

speciation

Answer 15

genetic isolation from a main population resulting in a genetically different species

Question 16

vestigial structure

Answer 16

remnants of an organ or structure that has lost its original function as a species changed over time