"Evolution of Biology" PPT free courseware

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Zhejiang Education Edition Ninth Grade Science Volume 2	pptx	6 MB

"Evolution of Biology" PPT free courseware

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Upload Time: 2024-09-15

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"Evolution of Biology" PPT free courseware

Part One: The Origin of Living Things

There are many kinds of creatures in nature, and more than 2 million species have been known to mankind. So where do so many kinds of creatures come from?

1. Creationism

2. Theory of Evolution

Evidence: Fossils and genetic material

What fossils tell us

How are fossils formed? What secrets are hidden?

animal death

Muscles rotted and silt covered corpse bones

Inorganic salts precipitate in bones to form fossils and are preserved in rocks

Changes in the earth's crust, erosion by wind and water (weathering), expose fossils.

Evolution of living things PPT, part 2: fossil types

Remains, Relics and Relics

How do fossils support the idea of biological evolution?

By arranging fossil specimens of the same type in chronological order, you can find some evidence that supports the view of biological evolution.

Past: Inferring the genetic relationship between organisms by observing the morphological and structural characteristics of biological fossils

Now: Compare the DNA and protein differences between paleontological remains and paleontological fossils to infer the genetic relationship.

As new evidence continues to be discovered, various previously accepted hypotheses are constantly being revised and improved.

Evolution of Biology PPT, Part 3: Class Summary

1. Formation and types of fossils

2. Fossils as evidence of biological evolution

3. Modern methods of inferring genetic relationships between organisms

Keywords: Zhejiang Education Edition ninth grade science PPT courseware for the second volume free download, biological evolution PPT download, .PPT format;

For more information about the "Evolution of Biology" PPT courseware, please click on the "Evolution of Biology" ppt tab.

"Evolution of Biology" PPT free teaching courseware:

"Evolution of Biology" PPT free teaching courseware Part One: Review Evidence supporting biological evolution 1. Paleontological evidence Various types of fossils: remains fossils, relic fossils, trace fossils. 2. Embryological evidence 3. Comparative anatomical evidence 4. Comparative...

"Evolution of Biology" PPT free download:

"The Evolution of Biology" PPT free download Part One: The Origin of Biology Our earth is very beautiful, and everyone knows that there are many kinds of creatures on the earth now. Have they been like this since ancient times? Creationism Creationism..

"Evolution of Biology" PPT teaching courseware:

"Evolution of Biology" PPT teaching courseware Part One: Learning Objectives 1. Through the study of the theories of artificial selection and natural selection, understand the reasons for biological evolution and the reasons for the formation of biological adaptability. 2. Cultivate students' dialectical materialist viewpoints and improve students'...

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Update Time: 2024-09-15

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"Evolution of Biology" PPT free courseware