The Plants & The Bees: Plant Reproduction - CrashCourse Biology #38

[@krystalgomez2300]

10 years since its been here with us still one of the most amazing channels out there

[@raxmax1421]

Organism: *Exists Hank: Now, *THAT* is awesome.

[@garretiswright8532]

xD xD xD truth

[@kassi4837]

Meanwhile on The Star Wars series of the plant world: “ somewhere in an elephant a turd far far away...”

[@sudhira5008]

lol

[@Kicatsjeeppups]

out of all the education biology videos I watch for school and leisure, you by far are my favorite. You explain it in a way I can understand. Thank you!

[@strongpowerthankyou9298]

"And these are perfect flowers! ...No pressure to other flowers, though." Do not succumb to the societal norms in the world of angiospermaphyta!

[@Luke51015]

the first part talking about haploid/diploid life cycle on plants could use more visuals

[@Cheeseson]

this whole video could use more visuals

[@omarabdelkadereldarir7458]

A lot of things in crash course biology could use more visuals

[@MusicSoulSound]

then it won't be crash course. lol

[@sfdgdrgdvxff]

I didn't expect this audience to so eagerly want visuals to how plants make babies, you dirty pervs

[@genas6703]

Aster Perthro we all just want plant porn 😂

[@like7oranges]

if you watch the opening with the sound off its like you're on a date with him

[@Magiccircle100]

man we need a crash course for math! You guys make learning interesting!

[@alexismurphy5387]

Im in middle school and I understand this guy better than my teachers

[@rileybenedict1804]

Alexis Murphy cool

[@leo-hao]

Same here

[@mustafafarooq1230]

Me too

[@tonklanattakit]

Who is Watching For a Review Test Now

[@dinosaursgorawrish]

hank is my man crush

[@dloquetepierdes]

+Kafi Shabbir You are starting to freak me out... you have comments on every crash course video I've watched today and apparently also know a lot about hank. Jk... or am I?

[@ildikoki]

it's a joke man

[@ayaamean4358]

Same brw......... He so cute😚

[@Neurocyborg]

Watched it while consuming huge watermelon. Feels good.

[@ajimaji384]

lol i wish i was eating a wodermelon!! BUT IT'S TO COLD!!!!!!!

[@enaszaq3051]

boi u lucky

[@krystalgomez2300]

This channel is the treasure for brushing the basics to perfection

[@iamtommyok]

These are such well made videos

[@naarmalaide]

"We need vascular plants to have sex." There are two ways to interpret that, and oddly enough, they are both entirely correct in and of themselves! :D

[@yourmillennialtherapist]

'we need vascular plants to have sex'.. HAHAHAHHA i love you hank

[@CeridwenPax]

+Eunice Cheung But do we need vascular plants to themselves have sex, or do we need vascular plants so that humans can have sex? Such hilarious ambiguity.

[@eromangadono]

I'm trying to watch all your biology videos because I want to study for my SOL and actually it's being helpful! Thanks! For the free education!

[@Nerdbraska]

I AM TEACHING THIS TOMORROW. My students love your videos and this one happened just in time!

[@clarecornelius9068]

SERIOUSLY IF I MET YOU I THINK IT WOULD MAKE MY LIFE

[@baronbirdman]

6 years later and still helping pass highschool, i might find my old accounts comments here saying thanks =

[@NuYensTime]

When will you guys be finished the curriculum for biology I'm only asking because i have biology next semester. By the way you guys are better at teaching than any and all teachers i have ever had. Keep up the good work.

[@coriwilde6634]

I understand what technically defines a fruit. Although, in my opinion, I still say that a fruit is anything that can be a Starburst flavor lol :P

[@leo-hao]

(-_-“)

[@ajimaji384]

OMG same!!!!!! XD

[@nutcheck3]

Boy, did I love pine cone wars in the boyscouts. Nothing makes your day like pelting your friend in the face with a pine cone then running like hell to your base as he built an army.

[@pinkpixiechic]

These videos make me feel like I'm back in school. Thank you Hank :)

[@fellowricky]

thank you hank for all your time and effort. just wanted to let u know.

[@alexutreras5877]

🎯 Key Takeaways for quick navigation: 00:00 🌱 Vascular plants use alternation of generations, with sporophyte (diploid) and gametophyte (haploid) stages. 01:57 🌿 Vascular plants are sporophyte dominant, and their gametophytes are small and hidden. 03:21 🌲 Gymnosperms, like conifers, produce seeds and evolved from plants with spores, introducing seed-based reproduction. 05:45 🌷 Angiosperms (flowering plants) have seeds and flowers, using animals for pollination and creating fruits to disperse seeds. 08:37 🍓 Fruits are crucial for angiosperms as they aid in seed dispersal, sometimes through consumption by animals. Made with HARPA AI

[@hizzini]

Hey Hank, I love your science videos! I'm in Organic Chemistry right now and I'd love to have a set of your videos talking about chemistry (cause it's really hard and as a bio major I really don't get it). So, yeah, a suggestion for another series. Thanks! :D

[@akhilnatarajan9878]

You guys are the best

[@alchemistcoder9017]

sahi kaha bhai Apne desh ki to halat kharab h

[@bourgoisereader]

A brilliant mix of a great biology teacher , Thurston Moore and the last Lex Luthor

[@qwrites7716]

If by "more advanced" you mean "has been around longer," then needle trees probably have the market cornered. All needle trees are gymnosperms, which have been around longer than angiosperms, the classification containing most broadleaf plants. Gingko trees are one exception; they are deciduous broadleaf trees that are also gymnosperms. They're there to confuse you. However, there is an error in your question, which I will mention in my next reply because I'm out of characters.

[@joannaansah4957]

ANGIOSPERMS @4:48 mins. They have seeds AND flowers (mutualism between plant & insects)

[@Teuwntjuh]

Symbiosis is living together, to be divided into mutualism, commensalism and parasitism. Mutualism is a form of symbiosis where both organisms benefit from each other. (lychens, bees & flowers) Commensalism is a form of symbiosis where one organism benefits from one other, but doesn't harm the other organism. (bird nesting in trees) Parasitism is a form of symbiosis where one organism benefits at the expense of the other. (worms in colons)

[@darbylane]

So helpful thanks!!! I have my bio practical in an hour!!

[@cyrocya1]

I just want to say thanks. between you guys and Bill Nye, I'm learning a bunch of stuff that I might actually use down the road

[@sunriselg]

Lol, how all English scientific terms are from Latin descent, in other languages, we have native words for them. In German the scientific term is "Nacktsamer" which literally is the German word for "naked seeder".

[@ajimaji384]

*spits water all over my computor* oh my god that's just- that's just funny with in it self

[@enaszaq3051]

must be fun

[@clarecornelius9068]

I AM A PROUD FANGIRL OF YOU HANK

[@KendrixTermina]

You'd think Yumminess would usually be a disadvantage, but if it gets us to throw appleseeds all over the landscape...

[@samuhin_12]

Samuel hincapie - biology 2 From what I saw of the video, I think that seedless vascular plants are distinguished from seed plants by their vascular organization and, of course, by the lack of seeds. They reproduce by spores in a similar way to bryophytes. The major event of vascular plants is undoubtedly the formation of the seed.

[@clarecornelius9068]

I ASPIRE TO BE YOU WHEN I GROW UP

[@christianjimenez5915]

Clare Cornelius chill he’s just a person

[@clarecornelius9068]

LITERALLY YOU HAVE A GIFT

[@matthewharck-turner275]

Dont know about everyone else but these vidoes help a ton :D.. Keep up the great work guys

[@ryuuseicha]

I always laugh when the "I'm a Mormon" ads come on before this show.

[@Krazycutiegurlxxx]

There are only two episodes left.... Nuuuuuuuu!

[@zacharyivanhawkins251]

5:52 Incorrect. many angiosperms don't rely on animals at all for ovule fertilization. Most if not all of the grasses are wind pollinated and are all angiosperms, but have highly reduced flowers.

[@zombi2213]

He stated that they do not have to depend on wind. Not that they did not depend on it at times.

[@lydiaaustin2204]

Thank you! Your videos are great!

[@KyleZager]

Some seedless plants are just because they don't get pollinated by controlling the conditions in which they grow - e.g. pineapples (Hawaii, where the hummingbird that pollinates them doesn't visit). Other plants are seedless by random mutation and people graft them or, with the banana, they take the base of the plant and split it, making each of said fruit genetically identical. Wikipedia has a good blurb on it but I apparently can't post a link to it. It's the Seedless_fruit#Biology article.

[@calebm9000]

Thank you for actually explaining what the physical sporophyte and gametophyte are instead of just saying "haploid vs diploid generation" like all the shitty textbooks do. I'm a fourth year plant science major and it took me a while to get this concept because of that.

[@clarecornelius9068]

YOU ARE LITERALLY AMAZING

[@nickhentz8243]

Please make a video about various phyla of the plant kingdom. these videos are so helpful and i wish that as i progressed there were ones that became more specific with education

[@neilpatel3046]

That helps me a lot because I am learning this in school so it is really helpful Thank You so much.

[@xxXArcticCobraxx]

i like how the flowers are in a beaker

[@ElectricEel17]

I only just recently started obsessively watching crash course videos. I'm a sophmore. I took World History AND Biology freshman year. WHYYYYYYYYYYYYY

[@ZRovas117]

Hank will you ever do a Behind the Scenes where the camera ACTUALLY turns around and shows what you are usually looking at? I'm so curious as to what the studio looks like. Same goes for the Crash Course World History set.

[@mariahjaquez937]

Love your videos!!! You be teaching me more than most of my teachers do!! lol

[@CreepyIndian91]

Where have you been all my life? I've never understood Biology until you appeared on my youtube page! Same goes for your brother in the history department :P:P

[@johndisco5280]

again this make a lot more sense to me thanks

[@OlleLindestad]

That's actually two questions: why do organisms have sex, and why are sexual organisms split into male and female. The former is fairly easy to answer: while asexual reproduction is super efficient, it doesn't generate NEARLY as much variation as sex does, and variation is evolutionary gold. The latter question is actually really tricky, and I don't think we have it fully figured out. To hear some awesome ideas, I recommend a book called The Red Queen by Matt Ridley.

[@Nerdbraska]

I'm a bit impressed at the turnover of my Green brother media-consumption habits in the past year. I've always been a science guy, but I'm also quite a reader. So before I actually started teaching, I watched John stuff and read his books and loved the way he talked about things and generally just had more to do with his media products. Now that I'm teaching, I use scishow & Crahcourse biology all the time, and I've gotten addicted to Lizzie Bennet diaries!

[@JawsFan27]

Yes. The pollen grains that stick to the stigma form two sperm nuclei that grow a tube down the style and connect to the ovule. One sperm nuclei fertilizes the egg to make a zygote and the other sperm nuclei meets with the two polar nuclei made by the megaspores to create an endospore that pretty much is food for the zygote in the ovary.

[@paradoxialanswersish]

Hi hank! We all love you!!!

[@simpleobservation9470]

GREAT JOB

[@McPrfctday]

Have you seen the "A Bit of Fry and Laurie" skit where they are Open University lecturers / presenters and there's a tiny mistake in a huge mathematical equation? Maybe it's an homage to that kind of humour :) (Or indeed; "Look Around You".

[@jenniferkubina149]

Thank you, that was fun. Glad your nectarine was awesome.

[@roidroid]

what do you mean "taste like they do". In what way does their taste relate to their category?

[@Frostbain]

I was expecting the last line as he bit into the nectarine to be "Mmmmm, that's a good plant fetus".

[@diegopacifico1527]

Vegetables specifically means part of the plant that is edible. Be it leaves or stems fruits are the seed pods of those plants. Tomatoes, apples, cucumbers and what not. I think we all know what roots are

[@joshitheyoshi2533]

What would have helped is diagrams - instead of just a person rambling in front of a black background.

[@palacsintakat]

good thing there were diagrams

[@AhmedAli-ql1op]

good come back :)

[@revolutionaryhd-zt5yb]

im learning this in 7th grade and they wouldnt explain it well , thank you so much!

[@TheSannabell]

My answer was about the hypothetical situation that was presented, to illustrate why doing so would be wrong. There are ppl out there who think this is how relationships work, mainly because it is a frequently reinforced easy way out. To them these jokes are about "the way of the world", to laugh at w recognition. Like it or not, it is one of the reasons ppl buy flowers, albeit not a good one or even (hopefully) a frequent one. And those implications are present in every one of those jokes.

[@jemmastefanou1607]

there is also at least one non flying mammal that acts as a pollinator. i don't know its name but it lives in southwest australia where there are many many flowering plants (more than all of europe in a small-ish area), and this tiny possum has evolved to just live on nectar. Im guessing it is a major pollinator too. - michael (not jemma)

[@clarecornelius9068]

YOU DESERVE AN AWARD

[@clayshearer5602]

Not true, gymnosperms had mutualism with insets for pollination too!

[@OlleLindestad]

Is this a running problem with Hank? Where else have you picked up on it?

[@0110monica]

hank, will crash course do a physics course in the future?

[@kght222]

surprised you didn't mention tomatoes and peppers at the end.

[@docbrown3405]

YO! Dat Nectarine is a DROUPE! A berry with a soft shell at maturity. The carpel hardens into a pit. Anyway! Love the show! This could have totally helped for my Botany midterm (like an idiot, I forgot to check for this D: ), keep up the good Plantae work! Nothin sexier than an angiosperm!

[@TheTARDISCatcher]

i learned about all this last year and its weird to see it all again 0.o

[@hixsongarren]

you eating a nectarine made me think of how awesome it is that we can have fruits that normally aren't available at certain times of the year which then made me think..... wait how does that happen. can you please do a scishow on the science of food preservation?

[@mortrek]

Actually, strawberries are fruits. They are aggregate accessory fruits. Saying that they aren't a fruit is like saying that blackberries or apples aren't fruits.

[@fakjbf]

What's the difference between mutualism and symbiosis?

[@Farfromhere001]

You should have touched on the Ephedra genus or family!

[@kcavey10]

Would it be plausible to say that flavonoids are present in the petals of flowers to protect their reproductive organs from harmful UV radiation more so than to attract pollinators as the are thought to have co-evolved creating a symbiotic relationship. I don't know much about bees and their ability to manipulate light waves into visible color, but it would seem to me that they are attracted to the nectar and not the color. The thought that the reproductive organs of flowers are exposed to direct sunlight would create a need for the protection.

[@pamjack83]

Awesome video, but it was sort of funny when you were talking about gymnosperms and a picture of an angiosperm seed (maple seed) popped up.

[@JimCullen]

A tomato is a fruit. It's a well-known fact often used as an example of a common misconception.

[@swampfox1007]

Wait! flowers were invented?! 4:03

[@Mr101Crazylol]

"invented" by nature and evolution

[@RainbowFresca]

0:56 I see that double meaning there ;)

[@shaylaw8014]

I THOUGHT THAT TOO

[@TheNEPTY]

For those of you asking for hank to slow down....Its called “Crash Course”

[@NawidN]

Will you ever do an episode on allergies?

[@MineMurphydog]

Makes sense considering what the flowers are meant to accomplish.

[@mitchumsport]

sometimes monks are effective pollinators as well.

[@OlleLindestad]

The word gym(nasium), meaning a place for exercise or school, comes from the institutions in ancient Greece where young men would get their athletic and academic education. It was customary for athletes to be naked. :D

[@OlleLindestad]

Nothing in evolution *knows* everything. But plants that were tasty to insects gained an advantage over other plants because the insects would move their pollen around. And plants that started secreting nectar gained an even greater advantage, because no important parts would be eaten by the insects. Meanwhile, insects that sought out plants gained an advantage because they could exploit a great food source, so plants and pollinators evolved in response to one another. Y'see?

[@indecentanalyst]

Hi Hank! When you're saying "comments' section below", it's not always true. In the youtube app on android, it's on the right. Just a piece of useless information, but information anyway.

[@PrimusProductions]

Mathematicians invented computers not physicists. And I did not say that biology produces better inventions but that they have inventions, that you use and wouldn't be alive due to them.

[@KTMD95]

I've a question: If there are in some cases male and female plants, do they, like animals have a different set of chromosomes? I mean, like an X and an Y for males and 2 X's for females? Or is there no difference at all?

[@xxvanillacandycane]

I like how I consider watching bio videos a break from studying materials engineering...

[@daleksunshine]

this is the topic were covering in biology right now yay!!

[@gaubrini]

Not only that, but Hanks videos are probably a bit more complex than most 4th graders are interested in learning

[@ArborealOreo]

I thought strawberries were fruits because they have the seeds attached to them, so the whole yellow little dots on the strawberries, they are the entire fruits? That's just strange classification, but I guess we have to be technical.

[@josephomalley2200]

Super Totally Awesome!