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Barbara Gibson
Приєднався 7 жов 2011
edited videos from educational sources used for classroom instruction
Відео
Saving and Uploading Kami Files to Schoology
Переглядів 363 роки тому
Saving and Uploading Kami Files to Schoology
Приєднався 7 жов 2011
the whole class has to watch this video bruh
It is always interesting to see how fossils are analyzed and how our knowledge of what is hidden in time can be brought to modern life. The larger question still remains. From where did life come? How did the intricate eye develop? Body systems are complicated and cannot be developed without some already existing plan. How do livings improve through time when 98% of mutation is not helpful? Surely, it must take more than long time periods and chance.
how do i become birdth?? like how do i gib birtbrth?? help youre smartd
I'm here from my professor
So it happens in the egg not over millions of years😊
Hello
Edit the title to survival of the fittest 'species'.
Thank goodness his mother wasn’t aborted.
This one should be very interesting too watch I wonder if L.L.cool J he has some Indian decent
has some Indian...he Is Indian ...I know cause we are related
Thank you so much!
ayşe hocadan gelenler
Tükendim be kardeş
Barbara mor liek barbara
The advances are amazing
You’re a fn fish
"Objectivity is the delusion that observations could be made without an observer." - Heinz von Foerster (1911-2002)
Is there anymore?
🤯
I am so shocked
Tiktaalik is related to paddlefish?! I don't think so. Paddlefish are, along with Sturgeons, Acipenseriformes (aka Chondrostei), which are part of Actinopterygii. Tiktaalik is related to Sarcopterygii, which are the lobe-finned fish plus tetrapods. Tiktaalik is more closely related to humans then to Paddlefish.
Ola Adrian, Correct! The video does a good job at showing how Shubin discovered Tiktaalik and the importance of its forelimb bones for yielding insights into the evolutionary transition from water to land. And for that reason, I show it to my biology and zoology students. However, the discussion of his evo-devo work on paddlefish gets muddied where they say Tiktaalik is related to paddlefish; literally, they say they are "next of kin." They also say Tiktaalik and paddlefish are "two kinds of fish." As you note, this is wrong because, Tiktaalik is more closely related to the tetrapods in Sarcopterygii, and paddlefish are ancient ray-finned fishes in Actinopterygii. So, the video is confusing. They also don't accurately describe the evo-devo work, which is quite complex. The key finding was that people thought HoxD expression to make autopods with toes was a tetrapod innovation, but Shubin and colleagues showed that paddlefish remarkably also show late-phase HoxD expression. This gives insight into patterns of character loss and gene expression giving rise to different appendages in different bony fishes... and all the species discussed are bony fishes :)
Actually several things make Tiktaalik downright confusing itself... for example it's like Archaeopteryx in being a mixture of different forms, which makes it a great transitional fossil, but we can't call it a fish or a full tetrapod and we don't have the hind limbs. We call it a "fishapod." Its phylogenetic position is also very uncertain. Cross your fingers and hope for more discoveries closely related to it, maybe a full skeleton one day.
Bro the real one is right next to it in my feed, why would my teacher pick this one?
Nah fr my teacher did the same. I dont wanna be supporting this barbara bum whose stealing content from daddy bozeman
ua-cam.com/video/Y7cwNQupH-g/v-deo.html too bad it’s being used for bad rather than good
finches
cool
Hebrew Israelite. Kal Halal YAHAWAH BAHASHAM
Oh shut up 🙄
This is why transgenders are increasing
Lhk
Why isn’t anyone asking the obvious question? Rather than asking “what preserved the blood vessels for 80million years?”....... maybe they should be asking whether the bone is really 80 million years old. In real science, no one can preserve biological tissue in ideal conditions for a thousand years....... so the more logical conclusions SHOULD be that the bones are not very old after all. Follow the evidence where ever it leads?
Dababy lessgoo
lmao what it aint even a clip of it its just the full og video
12:05 Anyone else notice that a man named Frank Fish became a marine expert? It’s very funny to me.
Pog
Props to the one kid who comments next year.
Why thank you kind sir
Good day
Kanye 2020
can a loc come up in your crib?
Wow you explain very clearly ✨
Fascinating video
I wonder how much time and hoe many generations it takes to adapt like this?
🐁
Aye yo, who’s here because of online school?
yea man
Bunch of BS, no answers provided. Rather you took the time to explain what you think happen with mang many jumps and gaps...
True and they’re showing this video as part of my lab at university
true
lo;l
this shit is boring \
true
Why do use Paul Anderson's video exactly? Do you have his permission?
Why did you do this? Just wondering.
BlackBearr7 why not
Lol.. When humans try to learn from animals and predators.. That's really an evolution... Survival of the fittest for the weaker.. But the puzzle pieces are scattered all over.. This is definitely the end times!!!!!! Believe me u can't stop it and u won't even.. Ur brains sucks and ur thoughts stinks.. Survive, economy, society, human character.. Money and resources are not being used properly.. Giving false hope is bad karma
one do you think where not thinking that two where trying three get the fuck out of here
Subscribe to rexetelectric
they boolin
Also see J. Wes Ulm's "What Darwin Did Not Mean: How Social Darwinism Fails Us". Also, "Survival of the Nicest: Social Darwinism is Biomimicry Gone Wrong". Great arguments against the schoolboy interpretation of evolution.
Darwin's theory is wrong. How to you explains symbiotic relationship.
Fuck off
@@impnaz1007,explain
Symbiotic relationship is for the weaker ones .its not for the stronger predators. U just need to observe which organisms follow symbiosis
@@vinaybh2710 YYes but the symbyotic survived and thats what is important they spread the genes then they do the same so they count as fit
Much more mysterious than why tetrapods have four limbs, is why they all have twenty digits. Is that just an arbitrary inheritance? The paddlefish fin is shown having seven, not five, digit bones. Is seven digits on each limb primordial? Or is five? Or did the paddlefish develop the extras after diverging from the stem tetrapod ancestor? When did the change from seven to five take place? Or from five to seven? Are there other modern taxa with more or fewer digits?
@GD Player 9 digit
Reptiliomorphs (below Tetrapoda) have five because 3 of 7 fused and all Amniota are Reptiliomorphs and all Mammalia are Amniota.
ua-cam.com/play/PLXJ4dsU0oGMLnubJLPuw0dzD0AvAHAotW.html
i understood it as tictalic afrensis is where the 5 digit per appendage 4 total iwhere the divergence took place 375 million years ago. I am not an expert or student so sorry for any misspelling .
I think about this too. I remember in my evolutionary anthropology class, we learned that there were other variations of the tertrapod form; creatures with 4, 6, 7, and even 8 digits. But tiktaalik's ancestor (the 5 digit one) out competed the others. Personally, I like having 5 fingers, though a second thumb might be useful. 8 fingers seems like a bit much tho, gloves would be a nightmare 😅
Oh.