the bubble ball Evolution and the Beginnings of Life On Earth

How did life begin on Earth?What is the history of life on Earth?How did life begin?What started the process?Is evolution real?Have you thought about these things?The age of the Earth, the origin of life, the original soup model and bubble model, evolution and Darwin's natural selection, the classification of fossils and organisms are some of the topics we will discuss in this article.This page is designed to help high school students learn biology.The chapters of this page are organized to match the chapters of Unit 3 of Holt's biology: "principles of evolution", although this article can be accompanied by any biology textbook, as well as independence.
Each section of this article includes one or more YouTubers as I find that educational videos can enhance learning.Ideas for lab and practiceActivities are also included.Biology students who do not use the Holt biological text may still find that this page helps them to study evolution and the origin of life.
There are three chapters in this unit.
Chapter 12: The history of life on Earth.
Chapter 13: evolution.
Chapter 14: classification of organisms.
This is the biological text of our family school members.co-op are using.This article you are currently reading is accompanied by Holt biology, adding additional photos, monic devices, labs, and YouTube to what you have learned in the text.Although it is expensive to buy a new one, you can buy Holt creatures on Amazon for a cheaper price.
Internet in AmericaEncyclopedia of world history-Very helpful resources for our biology class!This resource has a lot of beautiful photos and interesting text!The first 100 pages or so include information about the beginning of life on Earth.For example, the first page includes a colorful timeline of life on Earth.Other pages near the beginning of the book are about fossils, the birth of the Earth, the changing world, the beginning of life, the first fish, the first animals to leave the ocean to land, swamps and insects with meat, Age of amphibians, early reptiles, and many other topics.
The beautiful photos add to the appeal of the book and also increase interest and understanding.As we go through the various sections on this page (and our bio-text), I would recommend a specific page in the world history encyclopedia that the US is burdened.If you have a world history book, take a few minutes and at least pour that beautiful and rich picture over.
The beginning of life on EarthScientists think the Earth is made up of about four planets.5 million years ago.It started with a hot rock ball.Volcanoes on Earth form huge clouds of steam and gas.When the steam cools, it turns into water.
It has been raining for thousands of years.Oceans formed.Most scientists believe that life was first formed in these oceans.But how is life formed?Where did it come from?Oparin and Haldane propose a model of how life forms in the ocean.
model.
The volcanic gas produces a chemical in the ocean.These chemicals react to each other and are activated by lightning, volcanic eruptions, and solar radiation to produce amino acids in life.In 1953, Miller and Woolley decided to test the original soup model.
They do experiments with some gas.
When life first started, they felt that the same gas was present on Earth.Successfully created the cornerstone of life.However, scientists now believe that the molecules used by Miller and uriy did not actually exist in the atmosphere at the beginning of life on Earth.
So where do the necessary chemicals come from?Created by Louis Lerman in 1986, is a model that explains how some of the necessary lives areThere may already be chemicals made.Louis Lerman believes the gas could come from an underwater volcano and be trapped in underwater bubbles.Since chemicals are concentrated in bubbles, chemical reactions can occur very quickly.
Organic molecules are released into the air as bubbles rise to the surface and then break.Ultraviolet rays and lightning provide energy for more chemical reactions.When it rains, these complex molecules return to the ocean and start a new cycle.
Spontaneous originIt is the process of determining the approximate age of a certain thing by measuring the amount of a certain radioisotope.Radioisotopes release energy in the form of radiation.half-life.Small chains of amino acids can gather together in tiny drops of water.
microspheres.
Microsphere may be the first step in the direction of cell tissue.Study the 12 and 13 pages of the World History Encyclopedia linked by the US web.This is the timeline of life on Earth, and it started even before the first cell appeared.
Prehistoric timelineRead, "the birth of the Earth" (Page 20-21) and "the beginning of life" (Page 24-25) Encyclopedia of the history of the online world in the United States.Watch youtube below.Short video of Miller's experiment.Read 12.In your Holt Bio text.Natural occurrence is a term.In the video below, Anderson uses "how life is achieved through natural processes.Evolution of cell lifecyanobacteria.Before the presence of blue bacteria, there was not much oxygen on Earth.
Blue bacteria perform photosynthesis and release oxygen to the Earth's oceans.Oxygen eventually enters the air.On the right you can see pictures of blue bacteria.Real and ancient bacteriaE. coli.E. coli, which contains a chemical peptide in their cell walls.
No ancient bacteria.
About 150 billion years ago, the first organism was present.The eukaryotic cells contain the nucleus and organs (such as the mitochondrial) that surround the membrane ).It explains how the mitochondrial and mitochondrial are formed in the eukaryotic cells.
According to this theory, bacteria enter large cells and begin to live there.The real bacteria become Mitochondrial.Blue bacteria become Mitochondrial.There are many similarities that suggest that the theory is correct.Scientists divide organisms into six categories: true bacteria, ancient bacteria, protista, fungi, plants and animals.
Both real and ancient bacteria are single-celled organisms.Native organisms include single-cell organisms and multi-cell organisms.Fungi, plants, and animals are all later evolved, all of which are Euticals.
It is believed that most of the living animals today originated in the late pre-Hanses and early pre-Hanses.Due to the rapid diversity of animals during this period, this period is often referred to as the "train explosion ".During this period, many unusual marine animals also lived in it.
The fossils of the Burgess Shale geological group in Canada are very different from the animals we have today.Look at five-The eyes of Opabinia living in this period.(Below.Do you know the other five eye creatures?About 0.
44 billion years ago, there was a mass extinction of life on Earth.It is time for a large number of species to become extinct in a short period of time.So far, we have experienced five mass extinctions, the last of which was when most dinosaurs went extinct.
Some scientists say we are now experiencing another mass extinction due to the destruction of the rainforest and the species that live there.What to read, watch and do in this section.1.Read "shells and bones" (pages 26 to 27), "crowded Ocean" (pages 28 to 29), and the "first fish" in The Encyclopedia of World History (pages 30 to 31 ).
2.
See the creatures of the lower3.
Watch youtube below.
4.
Read 12.
Holt Biology 2.
5.
Six KingdomsThe site is full of colorful pictures and information about the six kingdoms.6.Life invaded this land.Blue bacteria began to add oxygen to the Earth's atmosphere when conducting light cooperation.Oxygen produces ozone in our atmosphere, preventing harmful ultraviolet radiation from the sun and enabling more life to live on Earth.
The earliest multi-cell organisms on land may be fungi that live and collaborate with plants or algae.This partnership between fungi and plant roots is called fungi.In this mutually beneficial cooperative relationship, plants provide nutrition for fungi, and fungi provide minerals for plants.
Mutually beneficial cooperation means that both sides benefit from this relationship.When plants cover the land, they provide a source of food for land animals.The first animals to leave the ocean to live on land were arthropods.
Crabs, lobsters, spiders, insects, etc.
, have hard external bones, pairs of joint limbs and segmented bodies.The largest animal population on earth is insects.There were the first animals to fly.Some animals do not have hard exoskeletons like insects, but have backbone.
The backbone animal is called the spine.
Fish is the largest among the spinal animals.(But keep in mind that fish are just the largest group of spinal animals.Insects are the largest group of all animals, so there are more insects than fish.
Amphibious animals are one of the species of mammals, such as frogs, toads, and fire lizards.They have smooth skin, four legs and lungs breathing on the land.Reptiles, such as dinosaurs, snakes, lizards, crocodiles and turtles, are also mammals.
They evolved from amphibians.
They have a water-tight skin that keeps them hydrated more.Although amphibians must spawn in water or in very humid places, reptiles are able to spawn on land because their shells are dense.Birds and mammals are two other species of spine that evolved from dinosaurs and reptiles.
Two factors affecting evolution are mass extinction and continental drift.Continental drift refers to how the mainland moves over time.Read and watch the contents of this section.
1.
Fishing with your fingers(Click on the word "view" on the right side of the video.2.Read Pages 32 to 42 about "life on land", "Fish leaving water", "Swamp and forest", "What is a reptile, "Early reptiles" and "Rise of reptiles" in The Encyclopedia of world history ".3.If you have time, you can also read the next few pages of the world history encyclopedia published in the United States, especially the first bird.
57) and "first mammal" (pages 60 to 61 ).
) This part of the book has many other fascinating pages, so take a look and find what you're still interested in!4.Watch Youtube below.Black-and-And the southern Turkey (bird ).Make the timeline of life on Earth.Watch the natural selection video below.(I will add to this section soon!1.Read "stories of horses" (pages 70 to 71) and "stories of Elephants" (pages 74 to 75) by Usborne encyclopedia of world history ).
2.
Watch the video below.
3.
Read section13.
Holt Biology 2.
Do two labs in our text about modeling natural selection (in section 13 ).At the end of Chapter 13.).Ch 14: Section 1-1.Watch the video below about the classification of life.2.Read the chapter of the book.3.Answer the review question.Congrats!You have completed this unit about the history of life on Earth!Ecological principles!Provide labs, information and videos for high school students studying genetics.
The history of life on Earth.
Biological CommunityIntroduction to classification-Animal Kingdom-Check again later for additional bio units!