"The Evolution of Biology" Biology and Environment PPT Courseware

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"The Evolution of Biology" Biology and Environment PPT Courseware

Who designed living things?

Creationism

Creationists believe that at a special moment in the history of the universe, God created all kinds of creatures at once. There are as many kinds of creatures as there were at the beginning, and there is no biological relationship between the various creatures.

Who made such a reasonable design for living things?

Evolution

Evolutionists believe that the various living things on the earth today were not created by God, but evolved gradually from common ancestors over a long period of time. Therefore, various living things have distant or close genetic relationships with each other.

Evidence supporting biological evolution

1. Paleontological evidence

intermediate transitional fossils

The order in which fossils appear in strata

2. Embryological evidence

The embryonic development of higher organisms begins with a fertilized egg

Comparison of embryonic development in seven vertebrate species and humans

3. Comparative anatomical evidence

Homologous organs

4. Compare DNA and proteins of ancient organisms

The process of biological evolution

1. The evolution of plants:

Primitive algae → bryophytes → ferns → gymnosperms → angiosperms

2. The evolution of animals:

single celled animals

Invertebrates: Coelenterates, Platyhelminthes, Nematodes

Molluscs, Annelida, Arthropods

vertebrate:

Fish → Amphibians → Reptiles → Birds and Mammals

Thoughts triggered by fossils:

1. Why are fossil organisms different from today’s organisms?

This shows that organisms are constantly changing in order to adapt to the environment, and some organisms cannot adapt to the environment and become extinct.

2. Marine shell fossils have been found in the Himalayas and Taihang Mountains. What does this mean?

It shows that these places used to be a vast ocean, and later they were uplifted into mountains due to crustal movement.

What can the distribution patterns of fossils in geological strata tell us?

In the earlier strata formed, the simpler and lower-class creatures become fossils;

In strata formed later, the fossilized organisms are more complex and advanced.

It shows that living things have gradually evolved over a long geological time. It reflects that the order of biological evolution (the direction of evolution) is:

simple → complex;

low → high;

Aquatic → Terrestrial.

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"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 free courseware:

"The Evolution of Biology" PPT free courseware Part One: The Origin of Biology There are many kinds of creatures in nature, and there are about more than 2 million species known to humans. So where do so many kinds of creatures come from? 1. Creationism 2. Evolution Evidence...

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Update Time: 2024-09-09

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