Column 1
Column 2
Column 3
Column 4
Column 5
100
Structure similar in appearance, but may have different functions; are the result of shared ancestry
Homologous Structures
__________________________________________
+5
100
Structures that may have similar appearance and function, but are not the result of shared ancestry.
Analogous Structures
__________________________________________
-9
100
Nonfunctional structures left over from a common ancestor.
Vestigial Structure
__________________________________________
-5
100
The more DNA similarities two organisms share the closer they are related.
Molecular Homology (Biochemistry)
__________________________________________
+1
100
Many four-legged animals go through embryonic stages that have similar features, as they develop into adults. Homologies include gill arches, nerve chord, paddle-like limb buds
Embyology
__________________________________________
+2
200
Similarities in the DNA and RNA nucleotide sequence.
Molecular Homology (Biochemistry)
__________________________________________
+3
200
Similarities in embryos of different organisms show a common ancestor.
Embryology
__________________________________________
-8
200
Change in the gene pool of a population, and the progressive change in a species over time.
Evolution
__________________________________________
+4
200
Use fossils to trace evolution of species and common ancestors.
Fossil Record
__________________________________________
-3
200
Homologous Structures
_________________________________________
+4
300
- The preserved remains or traces of animals, plants, and other organisms from the past.
- Important evidence for evolution because they show that life on earth was once different from life found on earth today.
Fossils
__________________________________________
-5
300
The study of body plans and structure among groups of organisms
Comparative Anatomy
__________________________________________
-9
300
Any animal or plant preserved in the rock record of the Earth that is characteristic of a particular span of geologic time or environment. Must be distinctive or easily recognizable, abundant
Index Fossil
__________________________________________
+7
300
The preserved remains or imprints of once living organisms that are used to compare with others. They are abundant and well known to scientists.
Index Fossil
__________________________________________
+6
300
Various structures in different species having the same function but have evolved separately, thus do not share common ancestor.
Analogous Structures
__________________________________________
+7
400
Occurs when a single or small group of ancestral species rapidly diversifies into a large number of descendant species.
Adaptive Radiation
__________________________________________ -6
400
1) Fossil evidence
2) Shared characteristics among living organisms
3) Similarities and differences in DNA
4) Biogeographic evidence
5) Common patterns of embryo development
Evidence of Evolution
________________________________________
+9
400
The process by which new species or populations of living things develop from preexisting forms through successive generations over a long period of time
Evolution
__________________________________________
+8
400
List the Evidence of Evolution
1. Fossil Record -7
2. Embryology
3. Biogeography
4. Molecular (Biochemistry)
5. Anatomy (homologous, analogous, vestigial)
400
The distribution of various species and ecosystems geographically and throughout geological time and space.
Ecological pressures have shaped the geographical distribution and adaptations of organisms over time.
Biogeography
__________________________________________
+7
500
Similarity in structure and anatomical position
Homology
__________________________________________
-6
500
Various cells, tissues, and organs in a body which no longer function in the same way the ancestral form of the trait functioned.
Vestigial Structure
________________________________________
+2
500
How are fossils evidence of evolution?
Older fossils (those in lower layers of rock) are more primitive than the upper layers. This provided support for descent with modification.
__________________________________________
-5
500
Rapid evolutionary diversification of a species.
- It occurs when members of a single species occupy a variety niches with different environmental pressures
- Consequently, members evolve different morphological features (adaptations) in response to the different selection pressures
Adaptive Radiation
__________________________________________
-4
500
1) Fossil evidence
2) Shared characteristics among living organisms
3) Similarities and differences in DNA
4) Biogeographic evidence
5) Common patterns of embryo development
Evidence of Evolution
_________________________________________
+10