Evidence of Evolution

Question 1

is the remnant of an extinct organism that has been preserved through eons of time in rock or another type of geological material. Bones, teeth, shells, leaves, footprints, and other prehistoric living forms can all be fossilized. reveal important details on the evolution of species, the environment, and the geology of various regions throughout the history of life on Earth.

Answer 1

Fossils

Question 2

is one that has significantly diminished in size and lost a significant ancestral function.

Answer 2

Vestigial Structures

Question 3

are organs and skeletal elements of animals and organisms that have the same composition.

Answer 3

Homologous Structures

Question 4

refers to the study of the development of the anatomy of an organism to its adult form.

Answer 4

Embryology

Question 5

is the study of the geographic distribution of plant, animals and other forms of life

Answer 5

Biogeography

Question 6

a study of genetic changes at the molecular level ex: amino acid similarities (cytochrome c)

Answer 6

Molecular Biology

Question 7

(Homolog) A gene inherited in two species from a common ancestor. This is defined in terms of shared ancestry in the evolutionary history of life.

Answer 7

Homologous Genes

Question 8

is the change in the gene frequency within a population. Evolution that happens in this level can be observed over a short period of time. The change can happen into four different processes: gene mutation, natural selection, gene flow and genetic drift.

Answer 8

Microevolution