EVIDENCE OF THE BIOLOGICAL EVOLUTION

Introduction

Biological evolution is possibly the most important process that affects all living beings that live on Earth.

It is a process that lasts a long time and takes miles or millions of years to manifest. Despite this, it is an unstoppable process that began with the appearance of life and has not lost any vigor since then.

Evolution cannot be demonstrated today because of its extreme slowness; However, we can obtain from a series of facts that will prove its existence.

In 1859, with the theory of the origin of Charles Darwin's species, the foundations of biological evolution were laid. Darwin claimed that the living beings that inhabit our planet have a common ancestor and from it evolved gradually. The mechanism by which these evolutionary changes take place is natural selection.

Many events of nature only have transformation through the theory of evolution; Darwin contributed several facts that fit his theory, and which were later reinforced with new evidence, all of which constituted what was evidence of evolution.

In this work we go, through a scientific research in groups, an attempt to demonstrate that the different evolutionary tests (embryological, anatomical, biochemical, paleontological and biogeographic) support this theory.

 

Objectives:

- TO KNOW THE EVIDENCES THAT EVALUATE THE EVOLUTION

- TO DISTINGUISH BETWEEN THE DIFFERENT TESTS

- TO KNOW THE IMPORTANCE OF THE DIFFERENT SCIENCES INVOLVED IN THE KNOWLEDGE OF THESE TESTS (EMBRIOLOGY, BIOCHEMISTRY, ANATOMY, PALEONTOLOGY, ETC.)

Task

Students must use all the means at their disposal to achieve the objectives.

The contents that students should investigate will be:
  1. Differences between classic and current
  2.  Embryological test
  3. Anatomical tests
  4. Biochemical tests
  5. Paleontological tests
  6. Biogeographic tests
Before starting work and forming groups, students should make a preliminary study of the theories on "Evolution (Fixistic and Evolutionary Theories)".

In addition, they have to search encyclopedias and reference books, and also use the Internet to complete searches.

They will present the results of their researches in two formats:

  • Word document with text and images 
  • Power-Point presentation

Five research working groups will be formed. The presentation of the works will be done, by each group, in both formats.

Process

Firstly, for this activity of investigation, they can use textbooks, Internet, encyclopedias, etc ... and the resources presented below, to know in advance about what they are going to investigate.

Secondly, when they have a clear idea of ​​what the topic is about, the groups will be formed and they will choose the type of test they are going to investigate, distributing the work to be done.

The first section of the contents will be common for all groups, justifying whether the test chosen is classic or current.

Each group should look for information for the chosen test on the following sections:

  • What is the test about?
  • Give examples as complementary knowledge useful to understand the test.
  • Why is the test useful?

Finally, they have to write in a word document all the conclusions they have arrived in their groups including images or anything they think is interesting for a better understanding .To end up, they will have to create a power-point (or another format,: prezi...) with the information, and present it for the rest of the class.

 

RESOURCES:

All of the web pages can be useful for the research.

https://e1.portalacademico.cch.unam.mx/alumno/biologia2/unidad1/evidenciasevolucion/bibliografia

http://ecociencia.fateback.com/pruebasevol/pruebasevolucion.htm

http://recursos.cnice.mec.es/biosfera/alumno/4ESO/evolucion/5pruebas_de_la_evolucion.htm

http://auladenaturales.wordpress.com/tag/pruebas-de-la-evolucion/

thtp://mciencia.educa.aragon.es/4eso/tema24.htm

http://www.librosvivos.net/smtc/homeTC.asp?TemaClave=1188

http://www.terra.es/personal/cxc_9747/EvolucionBiologica.html

 

GOOD LUCK!

 

 

Evaluation

The teacher will judge the works presented according to the following RUBRIC:

 

 

NEEDS IMPROVEMENT
 

GOOD
 

EXCELLENT
 

Introduction

Group did not introduce situation or it was sometimes confusing.

Group gave an introduction of topic, but transition to group details was not smooth.

Group gave clear introduction of topic and made an effective transition to the group details.

Organisation

Group was unorganised in the delivery of this teamwork. The order was unclear and confusing.

Group was well organised in the delivery of this teamwork. The order was somewhat clear. It was not confusing to follow.

Group was extremely well organised in the delivery of this presentation and word document. The order of the information was clear and easy to follow. Clear, concise and precise texts accompanied by related images.

Language

Group used sentence structures, pronunciation and/or language that detracted from the presentation and did not support the topic.

Group used sentence structures, pronunciation and/or language that was mostly appropriate in supporting the topic.

Group used sentence structures, pronunciation and/or language that was appropriate in supporting the topic.

Content

Text of the work in Word answers  some of the questions raised in the Process section not giving good arguments and not very good teamwork.

Text of the work in Word answers  the questions raised in the Process section but not showing a very complete and clear arguments.

Text of the work in Word answers  the questions raised in the Process section giving good arguments and showing the work of the group.

SCORING

Needs Improvement

 

5 pts or less

Good

 

6-7.99

Excellent

 

8-10

COMMENTS

The final grade of the work will be common for the members of each group.

 

 

Conclusion

To conclude, by reviewing this material you will recognize the evidence that underpins the evolution of living systems: paleontological, anatomical, embryological, biogeographic, biochemical and genetic, so that you understand biodiversity is the result of the evolutionary process.

The formulation of Darwin's evolutionary theory was based on a large number of data, to which numerous evidences have been added that show the historical evolution of life.

Credits
Teacher Page

Irene Valls

Biology teacher

Any question, doubt or any group special situation email me, please:

ivallspe@hotmail.com

The word document should be upload by the end of the next lesson in aules.