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!
🎯 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
My developmental biology professor when we started learning about plant reproduction: "Plants are blatantly sexy." (because their reproductive organs are out in the open where we can see them)
I don't think it's supposed to, but I know that when I was taking AP biology these videos saved my life, they're nice on their own, but really shine as a supplementary source.
omg hank i am so grateful for your videos ur last 3 bio videos are EXACTLY what im covering in school right now and tbh the teacher isnt covering them in depth enough THANK YOUUUUUUUUUUUUUUU
I never knew Strawberry wasn't a fruit!! And dear Hank! Don't you ever bite your tongue when you were talking? It's super fast that I don't know should I laugh or cry so I just do both! 😂 Love your video! Thanks! ♥️
me:*sees a cors on plant replication* hope this is simpul Vido: goes thro all of this 1) Sporophyte Dominance 01:55 2) Ferns 02:14 3) Gymnosperms 03:35 4) Angiosperms 05:33 5) Truth or Fail: Fruit Edition! 08:28 Mind at end of vido:*sistum mal funkshon! sistum ere! sistum mal funkshon! me at end of vido: ummmm SISTUM MAL FUNKSHON!!!!
+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?
Hank sitting in front of me with a bouquet of wild flowers... it made me happy ^^ I just watched a video by Hayley GH where she tells us how to avoid having a too great crush on our professors by reminding our selves that they're married by writing little notes on our notebooks. I'll just write it down on a comment: Hank is married. :'(
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.
+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.
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)
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.
03:21 The picture of the seed on the right side is misleading because the germination process starts with the root coming out first. I know it's a little note but still.
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.
This video is really amazing, the way you explain about how the different plants reproduction is really detailed and easy to understand. You also give some real life examples and that’s interesting. This helped me alot in my Biology 2 class.
Lisa Gomez - Biology 2 The video is about the vascular plant reproduction explaining that they use the basic alteration of generation developed by nonvascular plants, but they have tricked it out so it works a whole lot different compared to the way it did back where it got its starts. A plant can take two different forms that alternate back and forth between generations. The first form, the sporophyte and the second form, gametophyte. Non vascular plants are gametophyte dominant and vascular plants are sporophyte dominant.
Ah, well, I guess I'll just have to wait for the book and, as Robert Jordan would say, RAFO. Maybe have Nyneave heal the madness? And no problem- I've really been getting hyped for the new book.
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.
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
If by "more advanced" you mean "better at life"...well, broadleaf trees and needle trees are equally well-adapted to the living situations they've made for themselves. Needle trees are more equipped to survive at high altitudes, but at lower altitudes, the broadleaf trees crowd them out, so neither is really "more advanced" than the other, they just are good at living in different places. (Another comment forthcoming as well, because I thought of a third aspect...)
Wow, that's an *excellent* question. Incest is a problem because it concentrates harmful mutations; perhaps plants are generally better at compensating for this. Many plants are polyploid, for example; if I'm thinking right, that means they can get more variation out of a limited gene pool than a diploid organism can. That said, there are lots of mechanisms in plants to avoid inbreeding and self-fertilization. It's not a complete incestuous free-for-all.
You're right in a sense, but it's such an extremely useful metaphor (and one that evolutionary biologists themselves use constantly, with words like "strategy"). I think most viewers are smart enough to realize that he's not being literal.
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.
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
hey this was pretty great! A little lecturey in the middle, but I liked the animations & game near the end. I wish you had covered whether or not corn and tomatoes are fruit :) Those and a few others are often mis-classified by those with a more culinary (as opposed to biological) orientation.
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.
The nectarine at the end made me think of the last time I ate a nectarine and the pit was split open and the seed inside looked exactly like an almond, and after doing a little research I found out that I wouldn't die if I ate the seed, so I ate it and it was kinda bitter, but had an intense almond flavour. Also a peach seed has stuff in it that when you eat it, it creates a few milligrams of cyanide, which is not enough to hurt you, just enough to make you feel like a badass.
If by "more advanced" you mean "more diversity," then broadleaf trees win hands down. Wind pollination isn't very reliable: you need to have a large area of mostly the same species for the wind to successfully fertilize enough seeds to propagate your species. With animal pollination, plants can develop more specialized structures so they they can be more sure their pollen will end up fertilizing the right seeds. As a result, more species can live in a given area. (Does that make sense?)
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.
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!
what caught my attention was his question and if I understood the question correctly, the advantage of sexual reproduction over asexual reproduction is that they can occur; that although it is less, robust can take advantage of the fact that the organism can mutate something that is useful in its environment, or against predators.
Enjoyed the video. Just one question: what happened to the ovaries of the strawberry seeds if they are not a fruit and their seeds are suspended on a stalk?
Is this alternation of generations something that has been used to describe plant reproduction for a long time? I took a college biology course in 1997 and we went into a lot of detail but it was never described this way explicitly. If it has been a thing for a long time, then has it been mainstream in teaching it?
Organism: *Exists
Hank: Now, *THAT* is awesome.
xD xD xD truth
10 years since its been here with us still one of the most amazing channels out there
My mom walks in: What are you doing.
Me: I'm learning about plant reproduction. What else would I be doing.
Hank: _Thanks nectarine_
Producers: "Am I a joke to you?"
LOL
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!
Meanwhile on The Star Wars series of the plant world: “ somewhere in an elephant a turd far far away...”
lol
"Basically we need vascular plants to have sex." I will never forget how sex is able to happen now...
"And these are perfect flowers! ...No pressure to other flowers, though."
Do not succumb to the societal norms in the world of angiospermaphyta!
I am legitimately in love with this man.
Your his girlfriend?
What?! Im confused!
Girl, me too! But i wonder why he never replies tho.......
Good for you
Hope fully his pollen will find your ovem...
@@leo-hao uwu
question: what kind of plant likes to work out?
answer: the gymnosperms!!!
🎯 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
the first part talking about haploid/diploid life cycle on plants could use more visuals
this whole video could use more visuals
A lot of things in crash course biology could use more visuals
then it won't be crash course. lol
I didn't expect this audience to so eagerly want visuals to how plants make babies, you dirty pervs
Aster Perthro we all just want plant porn 😂
My developmental biology professor when we started learning about plant reproduction: "Plants are blatantly sexy." (because their reproductive organs are out in the open where we can see them)
OOOOOOOOOO!!!!!
YOU ARE BETTER THAN A TEACHER
Clare please just chill out
Clare Cornelius How is she suppose to chill out when the ice caps are melting at an alarming rate?!! 😱😱
Fish Pout just go pout over your melting ice caps, WERE NOT TALKING ABOUT THAT
What do you think he is ?? A kangaroo??
He is a teacher.
man we need a crash course for math! You guys make learning interesting!
Im in middle school and I understand this guy better than my teachers
Alexis Murphy cool
Same here
Me too
if you watch the opening with the sound off its like you're on a date with him
I don't think it's supposed to, but I know that when I was taking AP biology these videos saved my life, they're nice on their own, but really shine as a supplementary source.
This channel is the treasure for brushing the basics to perfection
I love the double meaning of "we need plants to have sex"
These are such well made videos
Watched it while consuming huge watermelon. Feels good.
lol i wish i was eating a wodermelon!! BUT IT'S TO COLD!!!!!!!
boi u lucky
omg hank i am so grateful for your videos
ur last 3 bio videos are EXACTLY what im covering in school right now and tbh the teacher isnt covering them in depth enough
THANK YOUUUUUUUUUUUUUUU
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!
I never knew Strawberry wasn't a fruit!! And dear Hank! Don't you ever bite your tongue when you were talking? It's super fast that I don't know should I laugh or cry so I just do both! 😂 Love your video! Thanks! ♥️
I AM TEACHING THIS TOMORROW. My students love your videos and this one happened just in time!
Panic mode = Crash course = basic knowledge only
me:*sees a cors on plant replication* hope this is simpul
Vido: goes thro all of this
1) Sporophyte Dominance 01:55
2) Ferns 02:14
3) Gymnosperms 03:35
4) Angiosperms 05:33
5) Truth or Fail: Fruit Edition! 08:28
Mind at end of vido:*sistum mal funkshon! sistum ere! sistum mal funkshon!
me at end of vido: ummmm SISTUM MAL FUNKSHON!!!!
Who is Watching For a Review Test Now
hank is my man crush
+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?
it's a joke man
Same brw.........
He so cute😚
This is one of my favorite pages for the reason i've learned more then I ever have from school in just a few episodes :D
Hank sitting in front of me with a bouquet of wild flowers... it made me happy ^^
I just watched a video by Hayley GH where she tells us how to avoid having a too great crush on our professors by reminding our selves that they're married by writing little notes on our notebooks. I'll just write it down on a comment:
Hank is married.
:'(
WHAT IN THE HELL YOU POST WHAT I LEARNED IN BIOLOGY CLASS EARLIER IN THE DAY EVERY FREAKIN' TIME.
"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
SERIOUSLY IF I MET YOU I THINK IT WOULD MAKE MY LIFE
thank you hank for all your time and effort. just wanted to let u know.
These videos make me feel like I'm back in school. Thank you Hank :)
ANGIOSPERMS @4:48 mins. They have seeds AND flowers (mutualism between plant & insects)
6 years later and still helping pass highschool, i might find my old accounts comments here saying thanks
=
I was eating an angiosperm literally the entire time I was watching this video. Nonstop.
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.
'we need vascular plants to have sex'.. HAHAHAHHA i love you hank
+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.
chanced on this and wow you guys are good. The presenter is too good and the information given is great. Thank you
So helpful thanks!!! I have my bio practical in an hour!!
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)
LITERALLY YOU HAVE A GIFT
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.
He stated that they do not have to depend on wind. Not that they did not depend on it at times.
You guys are the best
sahi kaha bhai
Apne desh ki to halat kharab h
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
A brilliant mix of a great biology teacher , Thurston Moore and the last Lex Luthor
03:21 The picture of the seed on the right side is misleading because the germination process starts with the root coming out first. I know it's a little note but still.
Hank should get his own tv show.
his delicious "hmmm" becomes so much better once I look at it in that light :D
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
(-_-“)
OMG same!!!!!! XD
Never have I understood the phrase "fruit of my loins" more. Thanks Hank.
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.
This video is really amazing, the way you explain about how the different plants reproduction is really detailed and easy to understand. You also give some real life examples and that’s interesting. This helped me alot in my Biology 2 class.
Lisa Gomez - Biology 2
The video is about the vascular plant reproduction explaining that they use the basic alteration of generation developed by nonvascular plants, but they have tricked it out so it works a whole lot different compared to the way it did back where it got its starts.
A plant can take two different forms that alternate back and forth between generations. The first form, the sporophyte and the second form, gametophyte.
Non vascular plants are gametophyte dominant and vascular plants are sporophyte dominant.
We need more people like you in our schools.
And btw, Ik I'm late to watch the video.
I AM A PROUD FANGIRL OF YOU HANK
Ah, well, I guess I'll just have to wait for the book and, as Robert Jordan would say, RAFO. Maybe have Nyneave heal the madness?
And no problem- I've really been getting hyped for the new book.
Dont know about everyone else but these vidoes help a ton :D..
Keep up the great work guys
Physics is the study of everything.
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.
I always laugh when the "I'm a Mormon" ads come on before this show.
That opening line was amazing. "Basically, we need plants to have sex." Lovely double pun, there.
Of the most enjoyable educational videos to watch :)
I ASPIRE TO BE YOU WHEN I GROW UP
Clare Cornelius chill he’s just a person
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
If by "more advanced" you mean "better at life"...well, broadleaf trees and needle trees are equally well-adapted to the living situations they've made for themselves. Needle trees are more equipped to survive at high altitudes, but at lower altitudes, the broadleaf trees crowd them out, so neither is really "more advanced" than the other, they just are good at living in different places.
(Another comment forthcoming as well, because I thought of a third aspect...)
Thanks, all these answer all questions I had (mostly which came first, and the altitude thing).
YOU ARE LITERALLY AMAZING
Wow, that's an *excellent* question. Incest is a problem because it concentrates harmful mutations; perhaps plants are generally better at compensating for this. Many plants are polyploid, for example; if I'm thinking right, that means they can get more variation out of a limited gene pool than a diploid organism can.
That said, there are lots of mechanisms in plants to avoid inbreeding and self-fertilization. It's not a complete incestuous free-for-all.
You're right in a sense, but it's such an extremely useful metaphor (and one that evolutionary biologists themselves use constantly, with words like "strategy"). I think most viewers are smart enough to realize that he's not being literal.
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.
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
That helps me a lot because I am learning this in school so it is really helpful Thank You so much.
hey this was pretty great! A little lecturey in the middle, but I liked the animations & game near the end. I wish you had covered whether or not corn and tomatoes are fruit :) Those and a few others are often mis-classified by those with a more culinary (as opposed to biological) orientation.
Thank you! Your videos are great!
Thank you, that was fun. Glad your nectarine was awesome.
Now I want a nectarine. But I know I will never find one that tastes as good as Hanks sounded.
You'd think Yumminess would usually be a disadvantage, but if it gets us to throw appleseeds all over the landscape...
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.
4th graders probably already know what those things mean and won't be shocked or anything, even though you're not allowed to say them.
The nectarine at the end made me think of the last time I ate a nectarine and the pit was split open and the seed inside looked exactly like an almond, and after doing a little research I found out that I wouldn't die if I ate the seed, so I ate it and it was kinda bitter, but had an intense almond flavour.
Also a peach seed has stuff in it that when you eat it, it creates a few milligrams of cyanide, which is not enough to hurt you, just enough to make you feel like a badass.
If by "more advanced" you mean "more diversity," then broadleaf trees win hands down. Wind pollination isn't very reliable: you need to have a large area of mostly the same species for the wind to successfully fertilize enough seeds to propagate your species. With animal pollination, plants can develop more specialized structures so they they can be more sure their pollen will end up fertilizing the right seeds. As a result, more species can live in a given area. (Does that make sense?)
Babiloo is the greatest app of all time for toddlers!
Hi hank! We all love you!!!
if your a true nerd biology buff then name your children Jimmy(gymno) and Angie.
Love your videos!!! You be teaching me more than most of my teachers do!! lol
What happened to animations and stuff man. Trying to explain this kinda stuff without some kind of visual just does not work.
+AlQatelx I think this is one of the earlier classes, before Crash Course had a massive patreon following to fund animation teams.
No this is produced same time as world history
@@leo-hao But Hank doesn't teach history.
@@kerensahardesty9851
John Green does
Not only that, but Hanks videos are probably a bit more complex than most 4th graders are interested in learning
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.
LOL! You guys are funny and smart!
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!
what caught my attention was his question and if I understood the question correctly, the advantage of sexual reproduction over asexual reproduction is that they can occur; that although it is less, robust can take advantage of the fact that the organism can mutate something that is useful in its environment, or against predators.
I only just recently started obsessively watching crash course videos. I'm a sophmore. I took World History AND Biology freshman year.
WHYYYYYYYYYYYYY
Enjoyed the video. Just one question: what happened to the ovaries of the strawberry seeds if they are not a fruit and their seeds are suspended on a stalk?
the hard little things around are the fruit. &)
Is this alternation of generations something that has been used to describe plant reproduction for a long time? I took a college biology course in 1997 and we went into a lot of detail but it was never described this way explicitly. If it has been a thing for a long time, then has it been mainstream in teaching it?
again this make a lot more sense to me thanks
I wish y'all would have talked about angiosperm flower life cycle more in detail