Evidence for evolution | Common ancestry and phylogeny | High school biology

Evidence for evolution | Common ancestry and phylogeny | High school biology | Khan Academy

Рет қаралды 286,361

8 жыл бұрын

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Three types of evidence support evolution and natural selection: structural, microbiological, and direct observation. Structural evidence encompasses homologous structures and the fossil record. Microbiological evidence involves DNA similarities and shared processes across species. Direct observation showcases evolution in action, such as antibiotic resistance in bacteria.
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Пікірлер: 2 900

@sonder2123 2 жыл бұрын

Christians, this is an educational video. Please leave. We don't need an evolution vs creation debate everywhere. This is video for students learning science.

@jarrettludolph6000 4 жыл бұрын

With sources like this, I cannot believe people still don't accept Evolution.

@_justnick 7 жыл бұрын

Am i the only crazy guy who wish that evolution would be 1.000.000 times faster? Just to see with my own eyes the process ^^.

@Edward-bm7vw 6 жыл бұрын

I don't understand how anyone could write so well with a mouse. I can barely draw a straight line with one

@Ozzyman200 3 жыл бұрын

You never get scientists telling us evolution didn't happen. So many well-funded creationists, and still they can't find a flaw in evolution that can be solved by creationism.

@ghassenboulares1479 4 жыл бұрын

After all of this progress people still believe Adam and Eve

@Chewchewman 7 жыл бұрын

also, your voice is fantastically clear

@alearosepercal9837 4 жыл бұрын

I get that you used the term "microbiology" since your referring to micro parts of biology like genetics but it is misleading since microbiology is a whole lot different branch of biology than those of genetics. As a recommendation, please try to be more precise and accurate when your using scientific terms.

@akelch11 6 жыл бұрын

A scientific theory is a well-substantiated explanation of some aspect of the natural world, based on a body of facts that have been repeatedly confirmed through observation and experiment. Such fact-supported theories are not "guesses" but reliable accounts of the real world.

@furrygumball 5 жыл бұрын

human facial bone scructures are literaly different in everyone, does no one understand that a fossil can look like humans without being human?

@onebanghamuud5710 4 жыл бұрын

3:03

@adamsATSfan415 4 жыл бұрын

I had to work on this for My Science class for burkes now Who else is working on this for there bio class because i am wondering because i like Bio I had Mrs.Burke 1st semester two and this will help me alot when im a junior Next year i will be Taking the science i want and it is my last year taking science well that is if i go to Jm Senior year,

@reeseexplains8935 3 жыл бұрын

I always love authentic videos like this.

@Tikimatuka 7 жыл бұрын

Shouldn't that be "molecular biology" instead of "microbiology"? I always thought microbiology is all about bacteria and the like.

@davidhaitel3372 5 жыл бұрын

Excellent video. Thank you!

@shostycellist 5 жыл бұрын

Homologous structures, as evidence for evolution, are compelling if one presupposes only purely naturalistic explanations. And changes in organisms such as bacteria and viruses do not involve an increase of complexity (i.e. single cell to human being).

@sammcewan9544 6 жыл бұрын

Appreciated the evolution of horselike animals through the fossil record. Was just wondering if there are any other step by step pathways in the fossil records which are between very different species/organisms? eg- reptile and bird, etc.

@lukefowls9131 Жыл бұрын

I concur. There were numerous amounts of College professors that looked down on me for my Kahn Academy videos. I think learning is a continuous journey though.