From " the Big Bang" to Homo Sapiens

Содержание

1. From " the Big Bang" to Homo Sapiens
2. Life on the Earth was about
3. The Universe does not exist. There
4. The solar system is only
5. Volcanoes secretes smoke with parts of steam.
6. (570 million years ago...) Invertabrate animals The
7. There are disputable factors (climatic changes
8. Amphibians (408-360 million years ago ...).
9. Ocean becomes shallow. There are a
10. There is a new group of
11. Dinosaurs die out. Mammals evolve in
12. There are anthropoids now. They differ
13. There is an intermediate link –
14. Thank you!
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Life on the Earth was about 3 thousand millions years ago. But our Universe was 37,5 billion years earlier. All has begun with the Big Bang …The introduction

Слайды и текст этой презентации

Слайд 1

The introduction
The Big Bang

The solar system
The beginning of life on the Earth
The first invertebrate animals
The first fish
The first amphibians
The reptiles
Dinosaurs
The first large mammals
Anthropoids
Homo Sapiens

From " the Big Bang"

to Homo Sapiens

Слайд 2 Life on the Earth was about 3 thousand millions

years ago. But our Universe was 37,5 billion years earlier.

All has begun with the Big Bang …

The introduction

Life on the Earth was about 3 thousand millions years ago. But our Universe was 37,5

Слайд 3 The Universe does not exist. There is only a

small point, very dense and hot. There is «the Big

Bang». From a point there is space and time. There are a lot of particles and antiparticles.
Particles and antiparticles come into collision and both of them are destroyed. As a result of this «microscopic fight» there are only particles. By that time the Universe is enlarged with enormous speed.

The Big Bang (37,5 milliard years ago...)

The Universe does not exist. There is only a small point, very dense and hot. There

Слайд 4 The solar system is only a dust and

gas cloud. Gradually the biggest part of this cloud gathers

in its centre. So there is the Sun. The rest of the part divides into clots and forms planets, including the Earth.

The solar sistem

The solar system is only a dust and gas cloud. Gradually the biggest part of

Слайд 5Volcanoes secretes smoke with parts of steam. There is sour

water on the Earth. The first organisms (bacteria) live in

this water. Organisms are brought on the Earth by a meteorite.
(but this version is unchecked)

The beginnig of life on the Earth

Volcanoes secretes smoke with parts of steam. There is sour water on the Earth. The first organisms

Слайд 6(570 million years ago...)
Invertabrate animals
The Cambrian period

Bacteria become invertebrate animals with a chitin cover.

(570 million years ago...) Invertabrate animals The Cambrian period Bacteria become invertebrate animals with a chitin

Слайд 7 There are disputable factors (climatic changes – fall of

level of ocean - huge emission of lava). That’s why

fish live on a land.
There is an important group of fish – Sarcopterygii (lat.) . They are ancestors of all four-footed animals.

The first fish. Their exit on a land (408-360 million years ago ...)

The Silurian and their Devonian periods

invertebrate
animals

Not yet
fish

fish

There are disputable factors (climatic changes – fall of level of ocean - huge emission of

Слайд 8

Amphibians (408-360 million years ago ...).
The Coal period

The climate becomes more droughty. As a result some

fish can live in water and on a land. They can breathe in water and ordinary air.

Amphibians (408-360 million years ago ...). The Coal period The climate becomes more droughty.

Слайд 9 Ocean becomes shallow. There are a lot of of

mountain ranges. As a result the climate becomes drier. Many

creatures get a leather shell to live only on a land. There are land reptiles. Many ancient groups of invertebrate animals die out.

Land reptiles (286-248 million years ago ...).

The Perm period

Ocean becomes shallow. There are a lot of of mountain ranges. As a result the climate

Слайд 10 There is a new group of reptiles – Thecodontia

(lat.). They are ancestors of birds, dinosaurs, crocodiles and Pterosauria

(lat.).
In the Triassic period there are a lot of dinosaurs: Sauropoda (lat.) and gigantic long-necked dinosaurs. There are Pterosauria (lat.). Also there is a big group of predatory dinosaurs – Carnosauria (lat).
Dromaeosauridae (lat.) are small predatory dinosaurs. They are ancestors of birds.
There are many pterodactyloidea (lat.).
There are marsupials, placentary mammals and ancestors of crocodiles.

Dinosaurs (286-248 million years ago ...).

The Triassic, the Jursky and the Cretaceous periods

There is a new group of reptiles – Thecodontia (lat.). They are ancestors of birds, dinosaurs,

Слайд 11 Dinosaurs die out. Mammals evolve in the first whales,

elephants, ancestors of horses and monkeys.
The first large mammals

Dinosaurs die out. Mammals evolve in the first whales, elephants, ancestors of horses and monkeys.The first

Слайд 12 There are anthropoids now. They differ from other monkeys.

They do not have a tail. They have rudiments of

intellect.

Anthropoids

Слайд 13 There is an intermediate link – australopithecus. Their brain

cerebrum is rather large, but it does not differ from

a brain cerebrum of anthropoids very much.
Australopithecus can walk upright and do prehensile movements.
Probably australopithecus are ancestors of Homo Sapiens.

Homo Sapiens