Evidence of Evolution

Question 1

what are fossils

Answer 1

remains or traces of an organisms embedded into the earth, such as bones, footprints, imprints of the organism and coprolite

Question 2

how are fossils made

Answer 2

when the organism is buried before decomposition begins

Question 3

what are transitional fossils

Answer 3

shows the intermediate state between an ancestral form and that of its descendents

Question 4

what is relative fossil dating

Answer 4

gives approximate data of fossils from rock layers

Question 5

what is absolute fossil dating

Answer 5

investigates the levels of radiation in rocks

Question 6

define biogeography

Answer 6

study of how continents move across the earth and how this impacts the location of organisms

Question 7

what is Pangaea

Answer 7

when continents were once all connected in a supercontinent

Question 8

what were the two broken continents of Pangaea called

Answer 8

Gondwana - southern and Laurasia 0- northern

Question 9

what are vestigial structures

Answer 9

functionless structure found in organisms, shows the ancestral lineage of structures that once performed a different function

Question 10

what is comparative anatomy

Answer 10

the science of comparing the physical structure of a species with others

Question 11

what is comparative embryology

Answer 11

the study of the development in the structure and function of embryos

Question 12

what are phylogenetic trees used for

Answer 12

commonly constructed to shoe the relationships between organisms

Question 13

how does comparing DNA provides evidence for evolution

Answer 13

organisms which are closely related have a higher percentage of DNA and genes in common

Question 14

how does comparing proteins provides evidence for evolution

Answer 14

comparing the sequence of amino acids in a protein can show an evolutionary relationship between the species