"The Origin and Evolution of Humanity" PPT teaching courseware

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"The Origin and Evolution of Humanity" PPT teaching courseware

Part One: Introduction of New Course

Myths, legends and religious theories have led people to believe that God created man.

It was not until the 18th century that humans and apes began to be thought to have the same ancestor.

The main types of modern great apes are: gibbons, orangutans, chimpanzees and gorillas.

Let’s take a look at these four great apes.

Gibbons are apes with extremely long arms. When they stand upright, their arms can reach the ground, so they are called gibbons. Gibbons are the smallest species among modern great apes, with a body height of less than 1 meter and a weight generally no more than 10 kilograms.

Orangutans are large animals with dense, reddish hair. Orangutans have pointed heads, small eyes and ears, well-developed jaws, and large and sharp canine teeth, which are suitable for dealing with enemies. They can also barely stand upright and walk, but The upright posture is awkward, and walking is very laborious. It is usually necessary to support the body with the forelimbs, just like using a cane.

Gorillas are the largest great apes. Gorillas also have forelimbs that are longer than their hind limbs. Their arms can reach 2.7 meters when stretched out.

The Origin and Evolution of Human Beings PPT, Part 2: The Origin and Evolution of Human Beings

The Origin of Humanity---Forest Ape

1. Continue to live in trees.—Apes

2. Forced to go down to the ground and use hind limbs to walk, forelimbs to search for food, and use stones, branches, etc. for defense. - Modern humans

3. Unable to adapt to the environment and eliminated. - Extinction

The main process of human evolution

Australopithecus: In remote southern Africa, people discovered the fossils of another type of ancient ape, called Australopithecus. Australopithecus lived between 5 million and more than 4 million years ago. They can be divided into two main types: slender and stout. It is generally believed that the slender type further evolved into Homo habilis, while the stout type became extinct about 1 million years ago.

The skeletal framework of Australopithecus was already adapted for upright walking. The hands and feet of Australopithecus have divided labor and have the necessary conditions for labor. Their brain volume is generally only about 500ml

Because they walked upright, they had free, albeit primitive, "hands." With this "hand", they can use natural objects such as branches and rocks to find food and defend themselves against enemies. With this "hand", they started making tools. On this basis, we gradually transitioned to early ape-men who were able to make primitive stone tools.

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"The Origin and Evolution of Humanity" PPT courseware download:

"The Origin and Evolution of Humanity" PPT courseware download Part One: New Lesson Introduction Nuwa created humans, Adam and Eve are all myths, so how did humans come from? Among modern mammals, chimpanzees, orangutans, gorillas and gibbons are similar to humans...

"The Origin and Evolution of Humanity" PPT download:

"The Origin and Evolution of Human Beings" PPT Download Part One Content: New Lesson Introduction Human beings are the spirit of all things, have particularly developed thinking organs, can work, and can make tools. How did we humans come into being? Learning Objectives 1. Tell the story of how humans originated from forest apes...

"The Origin and Evolution of Humanity" PPT courseware:

"The Origin and Evolution of Human Beings" PPT Courseware Part One: Situation Introduction Human beings are the spirit of all things, have particularly developed thinking organs, can work, and can make tools. However, are humans related to other animals? How did humans originate and evolve? study..

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Update Time: 2024-11-21

This template belongs to biology courseware Jiangsu Education Edition 8th Grade Biology Volume 1 industry PPT template

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