1. Evolution Evidence Evidencia de Evolucion

2. What is evolution? Que es evolución? A process by which existing species change into new ones. It explains how different life forms have evolved & why some organisms share characteristics. Un proceso por cual especies existentes cambian a nuevas. Un proceso por cual especies existentes cambian a nuevas. Explica como diferentes formas vivientes han evolucionado & porque algunos comparten características. Explica como diferentes formas vivientes han evolucionado & porque algunos comparten características.

3. What is the evidence? Cual es la evidencia?

4. Evidence 5: Molecular Biology/ Evidencia 5: Biologia Molecular DNA comparison of proteins. DNA comparison of proteins. Comparación de ADN de proteínas. Comparación de ADN de proteínas. Some proteins are found in different species and exhibit similar functions. Some proteins are found in different species and exhibit similar functions. Unas proteínas se encuentran en diferentes especies y exhiben funciones similares. Unas proteínas se encuentran en diferentes especies y exhiben funciones similares.

5. Evidence 3: Embryological similarities Organisms that share a common ancestor show similarities in their developmental stages and therefore have embryos that look similar. Organisms that share a common ancestor show similarities in their developmental stages and therefore have embryos that look similar. Similar features are: gill pouches, tubular heart, a tail & similar vertebrates. Similar features are: gill pouches, tubular heart, a tail & similar vertebrates.

6. Evidence 4: Morphological characteristics Homologous structures: similar bone, muscle and nerve arrangement but different function Homologous structures: similar bone, muscle and nerve arrangement but different function

7.  Analogous structures: different structure similar function (bee and bird wing)

8.  Vestigial structures: diminished organs with no apparent function (caudal bone, appendix, tonsils, wisdom teeth)

9. Warm up 2/21 1. 1. What does it mean evolutionary wise if two species do not have many differences in the amino acid sequence of a protein? 1. Que significa en la evolución si dos especies no tienen muchas diferencias en la secuencia de amino ácidos de una proteína?

10. Warm up 2/25 Answer the following questions using the cladogram we created on the board. 1. 1. What derived characters are used in this cladogram? 2. 2. Which mode of transportation may be considered an “outgroup”- a group that has none of the characteristics labeled on the cladogram? 3. 3. A species that has evolved a new trait is not better than a species without the trait. Each species is just adapted to a certain way of life. When might riding a bike have an advantage over flying in an airplane?

11. Using Evolutionary relationships to classify Cladogram – Evolutionary tree that proposes how species can be related to one another through common ancestors. --To create cladogram: Use derived characters- traits that differ in structure or function from that found in the ancestral line for a group of species.

14. Evidence 1: Fossil record Fossils are remains of organisms that lived long ago. Fossils are remains of organisms that lived long ago. They may be preserved as: impression, petrification, amber, a cast, or prints. They may be preserved as: impression, petrification, amber, a cast, or prints.

15.  Many fossils are found in sedimentary rock which is created when sand, dust, or mud are deposited by wind or water into a body of water

16. How to Date Fossils? 1) 1) Law of superposition (relative Dating): 2) 2) Radioactive dating:

19. Evidence 2: Geographic distribution of living things Unrelated species have similar anatomies and behaviors but live in different continents Unrelated species have similar anatomies and behaviors but live in different continents They evolve similarly because of pressures exerted by ecological conditions. They evolve similarly because of pressures exerted by ecological conditions.

20. Vocabulary Analogous structure Analogous structure Embryo Embryo Evolution Evolution Fossil Fossil Homologous structure Homologous structure Natural selection Natural selection Sedimentary rock Sedimentary rock Vestigial organ Vestigial organ