The Plants & The Bees: Plant Reproduction - CrashCourse Biology #38
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- Опубликовано: 25 июл 2024
- Hank gets into the dirty details about vascular plant reproduction: they use the basic alternation of generations developed by nonvascular plants 470 million years ago, but they've tricked it out so that it works a whole lot different compared to the way it did back in the Ordovician swamps where it got its start. Here's how the vascular plants (ferns, gymnosperms, and angiosperms) do it.
Table of Contents
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
References:
www.home.aone.net.au/~byzantiu...
hcs.osu.edu/hcs300/gymno.htm
www.msnucleus.org/membership/h...
faculty.unlv.edu/landau/gymnos...
• Angiosperm (flowering ...
extension.oregonstate.edu/mg/b...
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Organism: *Exists
Hank: Now, *THAT* is awesome.
xD xD xD truth
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
"Basically we need vascular plants to have sex." I will never forget how sex is able to happen now...
Meanwhile on The Star Wars series of the plant world: “ somewhere in an elephant a turd far far away...”
lol
10 years since its been here with us still one of the most amazing channels out there
"And these are perfect flowers! ...No pressure to other flowers, though."
Do not succumb to the societal norms in the world of angiospermaphyta!
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 😂
if you watch the opening with the sound off its like you're on a date with him
question: what kind of plant likes to work out?
answer: the gymnosperms!!!
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!
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!!!!!
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
man we need a crash course for math! You guys make learning interesting!
I love the double meaning of "we need plants to have sex"
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.
Im in middle school and I understand this guy better than my teachers
Alexis Murphy cool
Same here
Me too
These are such well made videos
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.
Watched it while consuming huge watermelon. Feels good.
lol i wish i was eating a wodermelon!! BUT IT'S TO COLD!!!!!!!
boi u lucky
'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.
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
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😚
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! ♥️
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
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!
This channel is the treasure for brushing the basics to perfection
"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
Who is Watching For a Review Test Now
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
These videos make me feel like I'm back in school. Thank you Hank :)
6 years later and still helping pass highschool, i might find my old accounts comments here saying thanks
=
I AM TEACHING THIS TOMORROW. My students love your videos and this one happened just in time!
chanced on this and wow you guys are good. The presenter is too good and the information given is great. Thank you
Thanks, all these answer all questions I had (mostly which came first, and the altitude thing).
🎯 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
Love your videos!!! You be teaching me more than most of my teachers do!! lol
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.
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.
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
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.
WHAT IN THE HELL YOU POST WHAT I LEARNED IN BIOLOGY CLASS EARLIER IN THE DAY EVERY FREAKIN' TIME.
So helpful thanks!!! I have my bio practical in an hour!!
Dont know about everyone else but these vidoes help a ton :D..
Keep up the great work guys
That helps me a lot because I am learning this in school so it is really helpful Thank You so much.
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.
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.
Thank you, that was fun. Glad your nectarine was awesome.
Thank you! Your videos are great!
Of the most enjoyable educational videos to watch :)
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.
:'(
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
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!!!!
his delicious "hmmm" becomes so much better once I look at it in that light :D
I wish y'all would have talked about angiosperm flower life cycle more in detail
A brilliant mix of a great biology teacher , Thurston Moore and the last Lex Luthor
We need more people like you in our schools.
And btw, Ik I'm late to watch the video.
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
LITERALLY YOU HAVE A GIFT
Hank should get his own tv show.
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.
You guys are the best
sahi kaha bhai
Apne desh ki to halat kharab h
I was eating an angiosperm literally the entire time I was watching this video. Nonstop.
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.
again this make a lot more sense to me thanks
YOU ARE LITERALLY AMAZING
Never have I understood the phrase "fruit of my loins" more. Thanks Hank.
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. &)
That opening line was amazing. "Basically, we need plants to have sex." Lovely double pun, there.
Thank you for making this video
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".
*spits water all over my computor* oh my god that's just- that's just funny with in it self
must be fun
GREAT JOB
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.
ANGIOSPERMS @4:48 mins. They have seeds AND flowers (mutualism between plant & insects)
I always laugh when the "I'm a Mormon" ads come on before this show.
LOL! You guys are funny and smart!
You'd think Yumminess would usually be a disadvantage, but if it gets us to throw appleseeds all over the landscape...
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.
This was fascinating and informative. Very good overview of the subject.
I AM A PROUD FANGIRL OF YOU HANK
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)
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.
very helpful for me thank you for these videos
I wish I found you 5 years ago haha, very helpful thank you!
Super Totally Awesome!
Hi hank! We all love you!!!
I am worshipping you the day before my test Hank!
Definitely now have the 'we're the exception' Mongol montage in my head.
Do the anthers produce nectar for the animals that carry out pollination? [if not what part of the plant produces the nectar].
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.
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?
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)
I ASPIRE TO BE YOU WHEN I GROW UP
Clare Cornelius chill he’s just a person
I'm full of thankful 4 u 😭😭♥️♥️
So many good bands names in his one.
although this is a very good channel and i learn a ton i dont think this could really replace an ap course
What came first... the gametophyte or the sporophyte?
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.
There are only two episodes left.... Nuuuuuuuu!