General
All living organisms evolved from what?
Common ancestor.
The study of similarities and differences between living creatures in their body structures.
Comparative Anatomy
The study of how creatures develop before being born or hatching from an egg.
Embryology
Provides information about what species existed at particular times of earth’s history. Shows us when specific organisms appeared, went extinct, or changed.
Fossil Record
Scientists can compare the DNA code of different species to find out who is most closely related to who.
DNA Comparison
Evolution is powered by _______________ processes.
Natural
structures (body parts/anatomy) which are similar in different species because the species have common descent and have evolved, usually divergently, from a shared ancestor.
Homologous structure
Organisms that are best 'fit' to their environment will go on to do what?
Reproduce
the study of the patterns of geographic distribution of organisms and the factors that determine those patterns.
Biogeography
See slide 76
Biogeography
A type of diagram that represents evolutionary relationships among organisms. Shows how species evolved from common ancestor.
Phylogenetic Tree
See slide 74
Mammal and bird
See slide 75
B and C
See slide 77
B
See slide 78
Common Ancestory
it does not show how ancestors are related to descendants, nor does it show how much they have changed
Cladogram
When the DNA of an organism is found within the nucleus of the cell, the organism is said to be what?
A eukaryote or eukaryotic
See slide 79
Cladogram
The human appendix is a structure we still have, but no longer use. What type of structure is this?
Vestigial