Old & Odd: Archaea, Bacteria & Protists - CrashCourse Biology #35

[@hongrand]

Thumbs up if you're cramming for a test.

[@dalantawilliams1867]

App biology 😂😂😂

[@gia2804]

I'm gonna fail 😭😭😭

[@murtaghmorza1]

+iCreativity_ Love fml

[@natashanajam3499]

+Da'lanta Williams doing it this year. Is the exam really hard?

[@katrineboucher7199]

RyanHong [Hongrand] well exam

[@awesomeskier12345]

hank: the only person on this earth who can condense a university biology course into twelve minute videos.

[@wetnwild1976]

thanks you. View got an exam Monday and this really helps xx

[@sarahstorm3110]

Died laughing when you made the joke about Daniel Tosh x3

[@meepmerp1562]

+Sarah Storm 10/10

[@MogofWar]

Dude... This is an educational channel.

[@RespectTheHood]

when i had malaria it sucked. badly. so much throwing up. i would not wish it upon my worst enemy

[@unvergebeneid]

If algae gave rise to plants but the two use different chlorophyll now, is the one of the algae more efficient then?

[@asianlilkim]

D: Just had my Bio test this morning! No!

[@Skywalker-zu7od]

Prokaryotes have chromosomes and also have smaller plasmids. It is an error to say that prokaryotes do not have chromosomes (even if they are circular). Please correct this.

[@keshavtiwari7087]

I love you hank sir

[@mousehead2000]

thought he was kidding about the dog vomit slime mold. he wasn't kidding.

[@jesondag]

As he said in another of his videos, there are two type of people. Those who believe in evolution, and those who haven't had it properly explained to them. /watch?v=P3GagfbA2vo

[@shrees5009]

you know you're super late to the party when there aren't only four kingdoms anymore...

[@everettduncan7543]

Soo many kingdoms of bacteria and archaea, archaea are somehow polyphyletic, protists aren't even valid

[@thingonometry-1460]

Thumbs up anyone with a test tomorrow!

[@LiniM1]

Thingonometry - Thumbs up anyone with a test in four hours :-/

[@diyanaljoe4389]

Thingonometry - dude, guess what???..it's me and he did cover the whole topic which is enoough for me not to read them at all.

[@ForestHuang]

+Thingonometry - i got an A on the quiz cus of this and the taxonomy vid and the fungi vid

[@1nf1nn1te]

+Thingonometry - Bi250, you know it

[@gabrielaorozco8941]

+Thingonometry - yup

[@prohunter297]

Who’s here quarantined

[@aaniyacoley5196]

Me😔

[@exqlu]

StupidNerdGhost me

[@samsalamander8147]

Still quarantined two months later

[@olivianassef9360]

@@samsalamander8147 me too hahaha

[@hansc.7002]

As a biology student at the university, knowing way more about the subject of these courses, I love your vids about biology and chemistry as a 'late night snack' but I recommend more pictures! They will improve explanation and remembering the key points.

[@osmosisjones4912]

Some found happyness in the uni signal cell form . Come on who be a germ. Can you imagine your life if you were a germ. Even outside the body. Maybe amabias are decents of white blood cells who managed to make it out side the body

[@ginevramancini483]

Tomorrow I'll take an important exam to get into Med School in Italy. I have studied for the past two years alone as an autodidact and all these videos have been a huge support in my journey. Thank you Hank and to all the members of CrashCourse!

[@conallirvine04tusifrirotsitrue]

Thumbs up if your watching this willingly after an upper pectoral workout

[@aeiomusic]

Oi, why are you scrolling through the comments?? GET BACK TO STUDYING FOR YOUR EXAM SMH >:(

[@amiratazkia]

Aeio Music tHANKYOU

[@huntermenge6297]

hahaha 😂😂😂😂😂😂😂😂😂😂😎😎😎😎😎😎😎😎

[@MishitTennis]

sad you teach better than my professor who has won a nobel prize and has multiple PhD degrees...

[@jaferization]

your teacher didnt get a nobel prize for teaching. she got it probably for her research. which goes to say, she's prob mediocre at teaching but amazing at research.

[@toxikc4189]

jafer bohra his/her lol

[@MishitTennis]

jafer bohra thank you for educating us.

[@jaferization]

TheShockerKnocker ur in some emotional pain that's why you go on the Internet letting ur hurt soul curse other people out letting out the pain. Please get help.

[@spinorama29]

TheShockerKnocker bad day?

[@oo6505]

Crash Course Microbiology would be nice!

[@cutestuff1115]

Adam St. Martin yesssss I was saying this. would've helped a lot with my class right now

[@microbiologyit]

Hi! I'm a microbiology online tutor. I am creating "Study with me" videos where I help you study microbiology. Whatever video you need currently, I can film and post.

[@microbiologyit]

I'm going through my microbiology textbook and posting "study with me" videos where I help you study micro. FREE tutoring session videos!!

[@samahhaddad9193]

ohhhh this was really one yr ago

[@myredlightspecial]

The ROC: A Strong Foundation cramming for a test Monday what do you have for fundamentals of microbiology prokaryotes eukaryote, some history, chemical principles, etc

[@Alexander-bd2hk]

guess theres alot of halophiles on the youtube comment section. its the saltiest place in the universe! :3

[@familyjirinchen760]

Ah hahahahaa

[@_koraki]

Alex ander guess I’m a halophile now ~

[@isaacme9450]

Thumbs up if you're not cramming for a test and you are just doing this for biology class

[@osmosisjones4912]

Maybe the father's mitochondrial DNA can be passed down through horizontal Gene transfer.

[@thaneros]

Neither, I'm just watching just because I miss micro. I've been out of school for about 5 years now.

[@photelegy]

Wow, I only really knew him looking older. Here he looks so very young 😅😅

[@jlklai98]

Thank you for getting me an A on my test.

[@mahtabuddin7960]

@@jaujau_0999 did you?

[@Koalaslovesloths]

CLARIFIED - Gram Stain does NOT stain cell membrane, it stains the peptidoglycan CELL WALL

[@skylerclyne6542]

not gonna lie I’m really high and also really enjoying this. Thank you young adorable Hank.

[@DEvin3290]

SALTY LIKE DANIEL TOSHS' MOUTH lmfao nice

[@ayrtonwallgregg6993]

They showed they in school....

[@szhou009]

Protists are honestly way too diverse to be classified all into one kingdom. What causes confusion is that the notion of classifying all other organisms as protists suggests that they all share the same phylogeny, which is anything but true.(ie. Brown algae and amoeba do not share recent common ancestors.) A great analogy would be the former system classifying eubacteria and archaea into the domain Monera, which does not truly reflect their evolutionary history (archaea are more closely related to eukaryotes). I hope that many more scientists start to debunk the notion of classifying organisms as "protists" simply because they "don't fit" and develop a system that truly reflects their evolutionary history (ie. adding more kingdoms--sorry biology students).

[@elimalinsky7069]

@Aastha Sarwal archea is more closely related to eukaryotes than to bacteria. It was only discovered recently (in the early 2000s) using comparative analyses of genomes. For a while it baffled microbiologists but it is now understood that all prokaryotes were archea-like when the first eukaryotes formed, and that modern bacteria developed more complex metabolism since the divergence of ancient prokaryotes into later prokaryotes and eukaryotes.

[@ellieedwards6304]

daniel tosh's mouth!!! so funny!!!!

[@ThatManAdrian]

They were throwing shade at him by saying he's salty? I think

[@teews4202]

Tf

[@kjbombsquad]

Can you guys do a video on viruses??

[@excelsiorcameo5295]

You think they haven't?

[@OsQuinneOsGwynneOsRobynne]

Squid Nugget They haven't lol

[@excelsiorcameo5295]

Nikkideamus Osyren Wow. I am shocked.

[@OsQuinneOsGwynneOsRobynne]

Squid Nugget Lol. Most of their stuff is at a 100 college level. You really only vaguely talk about viruses at that level.

[@bentom345]

Kayla Rooker they can do yes

[@RoxxyKaosGG]

I lost it when he said Protists are a "big crap circus" xD

[@carlomiranda6370]

Still cramming for my biology exam :( 2019!!!

[@LocoPedro9614]

"And Daniel Tosh's Mouth" SHOTS FIRED YO XDD

[@Tobhiyah]

I LOVE this Guy/show!!! So glad I took Biology so I can share these with my son. Favorite quotes, "like Daniel Tosh's mouth, Crap show & piles of barf"!! Call me a geek, but there's a good chance I'll watch these for fun even once I've finished my final today! Thanks for making science fun, interesting & funny!

[@Sean_Gao]

Anyone 2019 Biology?

[@itsbeanstime]

Me.

[@queensaharaice7376]

2020 baby😎👍

[@bobbyboy3558]

Apocalypse 👍

[@kdk750]

My dear Hank, Magically you always seem to know what my exams are on because this is like the fourth time you've posted the exact video I needed days before an exam. Thank you in advance for my B.Sc. :) You're the best!!!!!!

[@ohmygawdbecky95]

When I'm taking my Biology final tomorrow afternoon, I just know I'm going to be picturing that Sailor's Eye and Dog Vomit slime mold

[@amberckerr]

There is a factual error in the video at 3:04. Hank says that bacterial DNA is in the form of “rings called plasmids,” but actually, tiny plasmids are just a small fraction of bacterial DNA - most of it is in a large circular chromosome. Whoops, Hank.

[@Fleaf13]

Prokaryotes such as bacteria have a circular chromosome, but also possess extra DNA in the form of plasmids. It would be wrong to say only eukaryotes have chromosomes.

[@Skywalker-zu7od]

Fleaf13 Yes! Thank you, as soon as I heard that I knew it was an error. Good catch!

[@biapedrett2913]

I love youu, You made me want to study during vacation, and that's awsome!

[@21jillybeans12]

So I come home today, dreading having to study for my biology quiz tomorrow on... archaea, bacteria & protists. Hank sir, you have an uncannily accurate sense of timing.

[@nguyenjennifer4344]

They're old they're odd. Get use to it 😂😂😂

[@Hamski555]

Hahahaha just literally laughed out loud at “they’re scumbags” love this dude

[@jamesusmc22]

Im just here for my test tomorrow

[@samahhaddad9193]

pass it?????????

[@marywagner7120]

Lol, this video was only produced 4 years ago and it's already going out of date! The Kingdom Protista was determined to be polyphyletic and is getting broken up.

[@arjunbhatta6904]

6:50 Gram stain stains cell walls not cell membranes

[@alexislotus54]

love your vids im in 6th grade and although your vids are complex they are simple big big big big help

[@bl3748]

CRISSYMAKINGMOVES WADE How is your first year of high school going?

[@kingdavidjapan]

This series is so well made and thought out! Thank for putting it out there for free so that as many as possible can expand their knowledge! Thumbs up, Hank. Thumbs up.

[@sophiea8937]

my test is in 20 minutes...

[@stephancalitz7113]

how did that test go?

[@isaiahheyward4419]

sophie a lol did you pass

[@justarando7916]

sophie a try 3 minutes

[@user-iz6ny8vk3u]

It’s been 3 years how was you test

[@TrishisFlabbergasted]

This guy cracks me up.

[@CloseAirSupport]

Ikr

[@javi-ec2re]

who watching in 2019

[@y__h]

It's 2019 and still no satisfying video for Archea other than this.

[@elliotleitner9847]

It must be noted that he says Archaea are the oldest life forms on earth. This is FALSE. Bacteria are the oldest life form on Earth. They have fossil remains the predate archaea (3.6 billion years ago). Furthermore, the phylogenetic tree indicates that bacteria came first, then archaea, then eukaryotic organisms.

[@soniamartell9220]

Awesome video! So helpful! I was so confused about all three. Thank you!

[@mgabaliw9963]

I'm homeschooled and your video helped with my science lesson thank you👍🏻

[@ashhhhlyy]

Loved this video! Wish you included Euglenas as well though. (they're my favorite) They're definitely an enigma in their own c:

[@darinreddy951]

Daniel Tosh's mouth!! Ha!

[@jennamelman4269]

this stuff is so cool it would be awesome to see someone talk about it with awe and not sarcasm

[@tachypodion]

HANK THANK YOU SO MUCH YOU HAVE JUST ESSENTIALLY GOTTEN ME OUT OF A SEMESTER OF BIOLOGY I MEAN SERIOUSLY MY TEACHER DECIDED TO JUST SHOW US CRASH COURSE EVERY OTHER DAY FOR THE REST OF THE YEAR THANK YOU I LOVE YOU BLESS YOU AND ALL YOU HOLD DEAR

[@fudgemonkeyz69]

That's awesome dude! But turn your Caps Lock off. :)

[@tachypodion]

fudgemonkeyz69 Sorry 'bout that... The Caps Lock key on that computer was broken, and I didn't notice until after I posted.

[@vidhishah5639]

lol

[@Hollowwsstory]

Thumbs up if you ARENT cramming for a test And just like to learn :D Side note- sick 2012 burn to Daniel Tosh

[@markifi]

what used to bore me at school, just blew my mind. amazing. especially thermophiles.

[@luigireyes1346]

My first semester in Microbiology and man this helped a lot. I'm going to rewatch this. I need to take notes too.

[@Dinner_Roll]

I can never wait to get out of school so I can come home and watch educational videos on KZbin! Wait.. What did I just say?

[@QlarityP]

These videos are truly excellent! I am hoping, since you indicated on SciShow that you would entertain requests, that you would consider doing an entire series on Microbiology. Your Bio series has been an enormous help as has the Chemistry series. An entire series that really gets into life at the microscopic level would be really helpful for us pre-health care sorts. What do you think??

[@glens18account]

yay i'm in University!! I'm SMEERRRRRRRT!! :D even if I am using youtube videos to revise for a biology exam in 4 days. LOL.

[@thecorporation7249]

The only thing that people comment is "Thumps up if you're cramming for a test." Its dumb... Just study way before hand.

[@shadowspeed5328]

I'm literally binge watching all these 40 videos in just 2 days.. skipping 5. I hope i do well on my test! i can binge watch these.. they are interesting. I gotta skip the intros and watch the videos in 1.25 speed and skip the biolographies sadly

[@mcnaughty1000]

omg hes a genious, i wish he was my lecturer.. damn he knws his thing..

[@Dannijay16]

wow... A LOT of information just now... but very helpful and informative! your excitement and enthusiasm made it easier to digest all of the info... thanks!

[@macjsus]

"How is that thing one cell"?

[@gracebarnhart8560]

I'm not sure if it is this video or the context of my textbook that is outdated but a video on the 7 Eukaryotic Superkingdom would be great!

[@gracebarnhart8560]

Since the 7 superkingdom's are based on molecular sequences I'm quite confident that the video is out of date

[@JC111414]

Tomorrow is my test. Let's see if this really helps.

[@qwertygaming4336]

Warning! Brain Breach! Self Destruct sequence activated!

[@irenehomere2135]

im not the only one who got the part about daniel tosh's mouth right? lolol

[@irenehomere2135]

SevNation if you knew who Daniel tosh is you'd understand

[@irenehomere2135]

then you should understand

[@ThatManAdrian]

Was the reference supposed to mean that Daniel Tosh is "salty"? Because I don't really know the guy but that's the only thing that would make sense to me hahahah

[@omega9290]

actually my bio teacher said that the largest cell is 3 meters long and is present in the neck of a giraffe

[@kennedylyn2556]

Thank you for saving me from the typical long, drawn out, boring videos that you see on here lol. Thank you thank you thank you!! :)

[@ryansergas3894]

Thanks for the video! Hank never fails to inspire the masses with SCIENCE!

[@avishemingway7826]

This is really actually 7 years old. I remember watching it back then

[@turnerfinegardens5865]

I realize I've come a bit late to the party, but I wish you would do a whole episode on just the slime molds, or the xenophyta, like the sailor's eyeball that you mentioned. They're so odd and alien in their reproduction, and I'm fascinated by the idea of a macroscopic, single cell having locomotion.

[@Chamorizard]

Thank you Hank. But I noticed that your reference link takes me to a page claming i can buy Instagram followers. What´s up with that?

[@rajaaelhaj7635]

thumbs up anyone with a test tomorrow

[@ThirdWaveCrave]

Love your shirt, Hank.

[@lizziegeorge3603]

Bruh, required to watch this for online school, loooooving quarantine :/

[@eqlzr2]

There's a difference between rapidly spewing information and teaching. IMHO, it would be good to add some appropriate pauses, or careful repetition, to allow the important info in these vids to sink in. This could greatly improve recall--valuable evidence of learning. Of course, it depends on the intent: to impress or to inform. I believe these vids could do a better job of informing, if that's their intent. Many thx.

[@dr.jsmith8347]

HEY EDITORS! There is a glaring error in your section about bacteria. The gram reaction does not stain the cell membrane, it stains the cell wall. I'd love to link this video to show my class, but I can't because it is inaccurate.

[@kylekyle38]

+Jenny Smith You ma'am are a savage. "I'd love to link this video to show my class, but I can't because it is inaccurate." SAVAGE. Carry on.

[@konstantinostassis382]

+Jenny Smith I thought it stained the peptidoglycan in the cell

[@jasperian5697]

+Konstantinos Tassis bacteria's cell walls are made of peptidoglycan, and j think that includes prototists

[@konstantinostassis382]

+Sara Nina thanks for the confirmation, already had my test though.

[@troyjesse7833]

Protists do not have cell walls. And are eukaryotes, so would not have peptidoglycan anyway

[@Musistics]

WHAT are YOU doing lATEr? 😘

[@TheVlogWalrus]

This is so useful for the AP Bio exam. Crashcourse is saving my life. :)

[@kantipatel6971]

Ramcharoy manas the

[@Kate-J]

This channel is like the new bill nye the science guy :)

[@sep222]

Why did Hank chirp Daniel Tosh?

[@teandriaaa]

Now there’s 6 kingdoms 😩

[@georgeblue9271]

Bro why’d he gas Daniel Tosh like that tho

[@akbaralfiyan965]

Book brings me here *king sbmptn

[@manasansiva8878]

please explain slowly

[@ameshboy97]

you could slow down the speed of the video if that helps

[@manasansiva8878]

thank you

[@mormongirlnv]

Lets also give some props to the writers who also make this show great!

[@iraanuddin5129]

i wish my microbiology prof were like u ☹️

[@PacificCircle1]

The miracle of evolution!

[@OlleLindestad]

A couple of thangs: 1) Gram-positive and gram-negative bacteria have different thicknesses of cell *walls*, not cell membranes. Cell membranes only come in one thickness. 2) It's extremely important to note that no actual taxonomists count Protista as a kingdom anymore. It's been broken up into a whole bunch of kingdoms like Rhizaria, Excavata and Chromista (the exact number depends on whom you ask). It's a mess, true, but it's a much more realistic mess than the five-kingdom system.

[@TheCopticParabolanos]

Protists are no longer considered a kingdom. That said, I would not have gotten a 'B' in my bio course last semester without your videos.

[@LoydAvenheart]

Three years later and the school system still hasn't caught up xd.

[@theOGazure]

Its amazing how all this bacteria can live In all sorts of places and enviorments

[@TheSalamander5678]

seaweed is a protist. today i learned.