Introduction to Biology: Crash Course Biology #1

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Biology is the study of life-a four-letter word that connects you to 4 billion years worth of family tree. The word “life” can be tricky to define, but a shared set of characteristics helps biologists identify living things. In this episode of Crash Course Biology, you’ll learn how all of life is connected, and why studying biology can help us better understand ourselves and our relationship to all living things.
Chapters:
Welcome to Crash Course Biology! 00:00
Life's Characteristics 2:14
Is a Virus Alive? 6:18
Life Beyond Earth 8:52
Biology and You 10:03
All Life is Connected 10:44
Review & Credits 11:59
Sources: docs.google.com/document/d/1G...
This series was produced in collaboration with HHMI BioInteractive, committed to empowering educators and inspiring students with engaging, accessible, and quality classroom resources. Visit BioInteractive.org/CrashCourse for more information.
Check out our Biology playlist here: • Biology
Watch this series in Spanish on our Crash Course en Español channel here: • Crash Course Biología
Crash Course Biology is hosted by Dr. Samuel Ramsey. Learn more about him here: www.drsammy.online/
***
Crash Course is on Patreon! You can support us directly by signing up at / crashcourse
Thanks to the following patrons for their generous monthly contributions that help keep Crash Course free for everyone forever:
Katie, Tori Thomas, DL Singfield, Ken Davidian, Stephen Akuffo, Toni Miles, Steve Segreto, Kyle & Katherine Callahan, Laurel Stevens, Burt Humburg, Allyson Martin, Aziz Y, Perry Joyce, Scott Harrison, Mark & Susan Billian, Alan Bridgeman, Rachel Creager, Breanna Bosso, Matt Curls, Jennifer Killen, Jon Allen, Sarah & Nathan Catchings, team dorsey, Trevin Beattie, Eric Koslow, Jennifer Dineen, Indija-ka Siriwardena, Jason Rostoker, Siobhán, Ken Penttinen, Nathan Taylor, Les Aker, William McGraw, ClareG, Rizwan Kassim, Constance Urist, Alex Hackman, Pineapples of Solidarity, Katie Dean, Stephen McCandless, Wai Jack Sin, Ian Dundore, Justin, Mark, Caleb Weeks.
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Want to find Crash Course elsewhere on the internet?
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Опубликовано:

21 июн 2024

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Комментарии : 288

@vlogbrothers Год назад

Very grateful to Dr. Sammy for keeping the Aristotle jokes alive. So excited for this series!!!! -John

@johnchessant3012 Год назад

hi John

@Teo117 Год назад

😁😁😁

@jakefrechette3224 Год назад

Y'all have found some amazing hosts over the years and Dr. Sammy is absolutely no exception! I am really looking forward to the rest of Crash Course Biology 2.0 with them!

@Joe-nh8eq Год назад

I'll admit I was slight disappointed when Hank didn't appear, but damn Dr.Sammy absolutely crushed it. Fun, oozing with passion... Good stuff. Look forward to reviewing the wonderful world of biology with you.

@strange_thing-arra-3692 Год назад

YES im so happy that the newer crash course biology is here! Although i do miss hank, this guy teaches really nicely

@G-Tarun Год назад

I first saw Dr. Sammy on Khan Academy's new Biology course, and now on CC Bio 2.0! This intro is so masterfully crafted and delivered - I can see how you learnt from the best of Crash Course innovations across subjects, and combined it with Dr. Sammy's gift for teaching all things life in his inimitable, engaging style! This structure of listing out the characteristics of life without sounding like a monotonous textbook - it makes me think a similar format could be followed for a Crash Course Consciousness/Cognitive Science, if you do eventually make it! I do suggest a 50-episode Consciousness over a shorter CogSci series, since it's important to understand it from as many perspectives as possible - global philosophy, neuroscience, psychology, evolution, linguistics, comparative behavioural biology, etc. Also maybe a super-applied Behavioral Science course too, focusing on how psychology-meets-economics-meets-ethics helps us build a better world.

@drawyourownlife Год назад

Used the old Crash Course at the time it came out and was a biology student myself. This new version is refreshing, yet I feel it's more oriented to highschoolers. (which is fine, I will this when teaching) Maybe it's because I'm older, or because this first ep is just introducing biology, I'm curious how it will grow further. So thanks for making a wider oriented version of Crash Course!

@The_Serpent_of_Eden Год назад

I'm loving it, it seems like it's starting a little more "at the bottom" of things, which I think is important in this day and age. So many people have been denied even this most basic introduction to biology, so I'm glad CC is addressing it. Great work as always!

@WCOBDisorder Год назад

I did too when I was in High School, and next year I will be teaching AP Biology. So many great resources for the next generation of science students!

@elstankydank3815 Год назад

I Iiterally just finished Hank's edition of Biology crash course and now I hear there is another 50 episodes?!! I am here for it❤🤓

@RogueWolfArtist Год назад

Bright & Cheery narration style is a hard thing to nail without it being grating and no one did it like Levar Burton, and you have channeled him to near perfection. Great work, man. Never change.

@secondstar101 Год назад

This!

@osmia Год назад

@OlTrev Год назад

Yes I said the same thing!

@DavidTullyPhD Год назад

Dr. Sammy is going to be a standout host. Excited for this series, despite (especially because?) the time between now and my last bio quiz can be measured in decades.

@Snailgodonion Год назад

Finally a remake of the classical series. I’m really looking forward to all future episodes! Almost got my bachelor’s in biology, so this series will surely come in handy if they go deep enough into detail. Hopes are up! I’m cheering you on Dr. Sammy!

@starch7993 Год назад

Dr. Sammy is SUCH a favourite science communicator of mine and as much as Hank will be missed, Sammy introduces such a new and engaging style of teaching and I'm SO insanely excited. Got me coming back to crash course for the first time since high school!

@biolearning1019 Год назад

I studied biology in university and I am so loving this video! Thank you Crash Course. May you always be successful!

@doomedmessenger Год назад

He's a really good pick for this Biology-redux. Think he's one of the most Hank-like presenters so far, which is a compliment to him. ^^ Love his energy. I'll be keeping an eye on this Crash Course session.

@unknownscryptid Год назад

crash course biology helped me out so much in high school. I'm a biology major in college now doing undergrad research this summer and was just joking yesterday about how I may need crash course biology. impeccable timing

@EyeLean5280 Год назад

The Hank Green CC Biology series is a tough act to follow - but they clearly picked the right person to do so! Great episode, and I'm so looking forward to the rest of the series!

@biointeractive Год назад

So excited for this series! 💚

@ShakalDraconis Год назад

I personally prefer one of the newer approaches to the whole "are viruses alive" question, viewing the infected cell as the actual organism, and the viral load as the means of reproduction. In this way the virus is more akin to a mote of pollen. Now PRIONS, THOSE are the TRUE edge case!

@gee8419 Год назад

Personally my college virology teacher told us to save the question of if viruses are alive for our philosophy classes 😂 Virologists routinely refer to a virus as alive if it is capable of replicating.

@ClementinesmWTF Год назад

Prions and self-replicating RNA/DNA are definitely the edge cases. Viruses I think should be redefined at least as a part of life, if not organisms in their own rights. The definitions of “life” are much like definitions of “species”: sure, they may seem obvious on the surface, and many definitions do align, but there are so many differences and edge cases for each that it may just be better to be as inclusive as possible while noting the intricacies rather than excluding and making half-excuses for why the definition includes this but excludes others.

@venkatchait007 Год назад

you can also just think of host cells as the viruses environment, as a chemical system the viruses reliance on the existence of host cells is really no different from our reliance on the existence of an atmosphere or plants reliance on sunlight.

@Human-san Год назад

They're also really scary...

@alexreid1173 Год назад

It’s so nice to see an updated series! I watched these when I was taking biology in high school. I’ve taken a lot of college biology and ecology classes now, so it’s cool to watch these from a new perspective. (PS: updated, full length ecology series? would love that)

@clairematheson7153 Год назад

So excited for this series! I got my bachelors in lit but have been wanting to find free (and intro-level) resources to learn more about science. This is perfect!!!

@ananya.a04 11 месяцев назад

I love CrashCourse. It’s a lifesaver for me when I want to revise important concepts quickly. Even though I miss Hank’s narration, the new style is really charming too with the smart puns! Thank you to the entire team for bringing us such high quality content for free! Keep up the good work guys! 😊✨

@KillerTacos54 Год назад

Dr Sammy did an incredible job in this video. This made me very excited for the rest of the series

@amandanorton6508 Год назад

The new Botany series and now this! I love the new stuff they are putting out and I'm looking forward to episode 2

@JHaven-lg7lj Год назад

I’m so looking forward to this whole series, it’s my first Crash Course!

@hc6628 Год назад

Thank you for remaking this series! I'm about to apply for teacher training specialising in Biology, even though my degree is in Psychology - so it's a perfect refresher that'll get me to where I want to be even faster! Keep up the amazing work, Dr Sammy! :))

@seancreighton9154 Год назад

This is going to be one of the best Crash Course series yet! Cheers to science!👨‍🔬

@ChimeraZone Год назад

Hank is a legend, but Sammy is perfect for hosting this topic. Also bless you, Hank.

@luisvasquez9604 Год назад

I love the addition of Dr. Sammy, can’t wait to see more episodes!

@kmcsciguy Год назад

Very excited for the Biology series update!

@nateweinand4209 Год назад

This is going to be a great series! Dr. Sammy is a great host!

@AriaHarmony Год назад

I love that you mentioned the connection to the reset of the universe! I like to think that everything is the hydrogen atoms from the beginning of the universe, fusing into heavier elements, and temporarily wearing different forms as time goes by.

@ernestopreciado4895 Год назад

I very much like the definition of life that Hank onces gave in Dear Hank & John, "something is alive when it needs something, and then does something to get it"

@shrimpytcoon Год назад

What is life? life is pain

@Jaaxfo Год назад

Baby don't hurt me, don't hurt me No more

@hansolowe19 Год назад

Painnnnnnn 🤌😠

@ashog1426 Год назад

Baby don't hurt me don't hurt me no more...

@emilytopham5069 Год назад

Anyone who tells you any different is selling something --The Princesss Bride

@AmyraCull Год назад

Can confirm

@MarcoNicolasBongiovanni Год назад

I already want the next episode lol, this introduction got me excited, biology is not my field of study, but I still love to learn about it nonetheless, also, I kinda miss Hank, but this host is awesome and really chill, I'm really excited for this new course!

@hand.2 Год назад

in my 2nd year of biology at university, this'll be a fun way to refresh my mind on the basics :)

@mitchilaine Год назад

I am soo thrilled with this first episode! I think they're following a textbook (from openstax?) or just maybe the very beginning of biology. At school, we jump straight to cells and so on, so this was such a nice kickstart. I may not be taking biology(future pharmacy student here), but i sure am gonna love this series and love the subject even more.

@summer37x Год назад

Love biology, love your voice. I'm so excited for this series.

@5Seed Год назад

I'm so pumped for this and botany. Loving getting back into crash course

@scottlott3794 Год назад

This guy sounds like LeVar Burton when he did Reading Rainbow back in the day. Gives me goose bumps!

@RogueWolfArtist Год назад

Been waiting my whole life for this.

@stuck_around Год назад

waiting 12 years for this

@strange_thing-arra-3692 Год назад

agreed lol

@camiloiribarren1450 Год назад

I love this. This is what I got my BA in and love your lecture

@patrickmccartney2418 Год назад

It seems the question of “What is life?” is very similar to the question “What is free will?”

@nietzschescodes 11 месяцев назад

Nice! A 2nd Crash Course Biology Series!! Great idea!!!

@funkykong9001 Год назад

I wish there was a way to get notifications just for specific CrashCourse courses like this one

@dragonetafireball Год назад

Nice I was just looking for a basic biology refresher because I’m going into university for it so this is good timing

@Kiwironic Год назад

Oh finally, I love this, no voice fry, but still fresh, cool and modern. Thank you

@MakoWoman Год назад

Brooo I’m so excited for this series!!!

@Retronize84 Год назад

I recently got interested in fungi and thought it would be cool to see some other Biology videos. I remembered I used to watch CrashCourse ages ago and thought there must be a CrashCourse on Biology too so I looked it up and saw this was uploaded 1 day ago!!!!? What a crazy coincidence. The only downer is that I can't binge watch it because the next episodes aren't out yet >.< Really looking forward to this series!

@pedrorumoafluencia9245 Год назад

Amazing stuff. Looking Forward to the next lessons!!

@Go4Noctis Год назад

New crash course bio nice. Interested to see what we have to learn.

@storm1968eu 11 месяцев назад

my favourite subject in middle school waaaaay back when ... 🌱

@soluckyjb 11 месяцев назад

Thanks for this great video, Dr. Sammy!

@redcaramel2222 Год назад

FINALLY!!!! Excited for this one. ☺

@johndoe-qo8cy Год назад

What is life? Baby don't hurt me, don't hurt me

@Yazan_Majdalawi Год назад

He did not answer. Really.

@ZosoLU Год назад

, no more.

@nathanespinosa3463 Год назад

Right when i finish my AP Biology class too

@IvartheScientist Год назад

this was such a great intro video!

@feitocomfruta Год назад

Not gonna lie, I thought they already did a biology course. But I’m looking forward to this one!

@mbuhtz Год назад

They did. This is a remake because Bio was one of the very first courses they did so long ago

@JodyBrownIV Год назад

they did

@nimbuscloud5175 6 месяцев назад

Genuinely thought/hoped this was voiced by Levar Burton at first, while not watching the video. Am disappointed it isn't, but Dr. Sammy does an excellent job and I love his energy!

@ragnkja Год назад

Could you please provide closed captioning for this course? It would help a lot of people, especially when captioning allows people to watch the videos at a lower volume.

@OlTrev Год назад

Dr. Sammy is giving me serious LaVar Burton on Reading Rainbow vibes, his voice and his enthusiasm. I'm here for it.

@james__anna_burns4885 Год назад

very excited for this series!

@floodedbrain9564 Год назад

it's here!! it's finally here

@drakonnos 2 месяца назад

I love your energy, Dr Sammy!

@Ella-gp5nx Год назад

This is going to save so many people in AP Bio

@isacami25 Год назад

it was so interesting to see both this video and the one in spanish. I love that you're doing that, i can now show it to my nephews

@amandanorton6508 Год назад

I'm obsessed with this

@MrARock001 Год назад

One of the most convincing arguments to me for viruses being "alive" is considering the virus particle itself as being only one phase of the organism's life-cycle. Like, the virus particle is effectively a spore from a fungus which can't do anything on its own, but needs to land in a suitable environment (like a living cell) in order to grow to maturity. The implication of that is that the true "adult" form of a virus is just an infected host cell, which has almost no other function than to reproduce.

@kesienabezi7327 10 месяцев назад

Wow! I love this. Thank you Dr Sammy

@Omni0404 Год назад

4:24 "Fourth!" Lol I love this guy

@ClementinesmWTF Год назад

I’m very glad this video spent so long on the conversation of viruses as an edge case of life and why that is not entirely the case. There is much debate, and I think a lot of biologists are really just stuck to the traditional definitions of “life” when excluding viruses without having a further thought on it. Sure, they are very different from bacteria and other life, but there is no objective reason why we should exclude them when they are so much more like life than they are like a mote of dust. I hope to see that further explored (as well as self-replicating molecules like prions, RNA, and DNA) in the future of the field rather than just coming up with more and more intricate excuses on why we should continue excluding them from the definition of life.

@FrogOnALilyFrond Год назад

Hehe this has me excited for learning and im not even in school 🎉

@girhelookittylover Год назад

So excited for this series! Love the way you teach Dr.Sammy!!

@wrenchip Год назад

wish this came out a year earlier... love dr sammy

@grahamb62 Год назад

So well presented looking forward to this thank you 😊

@ensemblelearner Год назад

NEW CRASH COURSE? LETS GO!

@oganvildevil 2 месяца назад

Ok really digging Doc Sammy's presentation

@gabijagorobecaite8037 9 месяцев назад

AMAIZING! Thank you so much!!!

@justjunkmale Год назад

I've been trying to decide whether or not to go to college for a degree in biology and then this crash course starts. I might do it 🤔 the timing is wild.

@June-ft1cb 11 месяцев назад

OMG Dr. Sammy is so awesme ❤

@hidingzeus4306 Год назад

This guy sounds so much like LeVar Burton, I honestly wondered for a minute. Awesome stuff.

@oopsy444 Год назад

i got so confused why theyre doing biology #1 when they already did until i realized im thinkning of pbs lol. funny how both decided to tackle biology almost at the same time. so glad they covered different stuff too

@user-ei8bh2dj1r 8 месяцев назад

This is a very informative video for educational purposes

@branhan215124 Год назад

Damn dude came out swinging- not since Phil Plait (imho) has their been a host on Crash Course who just oozed charisma from the word go, I am so psyched!

@phosphortea5645 4 месяца назад

this is how i cram for my bio midterm

@malikpiara Год назад

The bee in the end is so cute.

@dreadnought1109 Год назад

Guy gave me Levar Burton vibes. Excellent

@davidsubotic9239 11 месяцев назад

Thanks!

@kausikmr Год назад

@CrashCourse I used to watch all you videos and I love it, CAN YOU PLS MAKE VIDEO ON NEUROMORPHIC COMPUTING.😃

@johnmcho Год назад

I'm a big fan of host Dr Sammy!

@windk2123 Год назад

i have learned a lot. thank you

@venkatchait007 Год назад

I like the NASA definition of life, keeping it simple is the way to go.

@The_Entity Год назад

pmsl at the Barry White part. love how this is presented - really interesting. I'm starting a Biology degree at 35 y/o in sept and am trying to soak up all the possible information I can before then :)