Hey Professor Dave, how is it that coldwater fish like cod and mackerel, can be constantly active in temperatures that would render a reptile torpid and shortly afterwards dead? If an ectothermic fish can survive near-freezing sea temperatures, why have no ectothermic land animals evolved the same ability?
I suppose when Professor Dave gets up to homo sapiens in this series, this piece on food acquisition and body temperature will focus on Harris-Teeters and bedspreads. ;-) Great work, as usual, good sir! Thanks for yet another enlightening upload.
11:54 actually if i recall correctly we have the same amount of hair as our closest relatives, it's just that they're not as coarse and therefore do not offer insulation or threat display use but numerically it's around the same number
Hey dave. 5 years ago you saved my g12 chem grade. Now having gone through uni, i believe one of the courses your style would work well with is control systems. Do you think you would ever end up doing a course like that?
Hey Dave! Have you seen the recent ramblings of your good old friend from Suspicious Observers? I’d love to hear your thoughts on this but I’m sure you’re not trying to reopen old dramas.
"A triangular metal plate, it's height equals half the length of its base, expands with heat while keeping it's shape constant, it the rate of change of its area is 0,05 cm²/s, find the rate of change of the length of its base, when the length of the base is 10cm" can you solve this for my homework please
Does goosebumps also help close sweat pores, helping heat retention through limiting heat transport through perspiration? I piss more in cold weather, which seems to make sense, given the possible reduced water loss through perspiration. Maybe the urinary tract takes up the extra load?
You should do short piece on "Vegan Gains" He proposes the apex predators should be 'culled' for the good of the environment. I'm assuming he's not getting enough fatty acid for proper brain function.
What is your counterargument? I prefer other technological and scientific implimentations that don't involve killing, but it is a problem that should be looked into.
@@quincywashington9355 Here's a middle school biology lesson for you. When you remove the apex predator from it's territory the prey population explodes. Then rather than grazing and moving on to escape, they graze the vegetation to the soil which then erodes and stops altogether. While predators only take a small percentage of their prey, they affect thousands in their grazing habits. It's a balance that's taken thousands of years to establish.
@@Robert_Browne Human populations have exploded due to lack of predators eating us. This does not mean we wouldn’t be ok with killing a predator that had to subsist on human flesh to survive. So you would have to name the trait present in humans that if present in other animals would cause you to think it is justified to kill their predators. Also it is vegan gain’s position that it is only justified to kill odd-order predators.
![Felix "Unfair" | [Stray Kids : SKZ-PLAYER]](http://i.ytimg.com/vi/Oswujxm2Ag0/mqdefault.jpg)
I remember the biological building blocks using CHONK: carbon, hydrogen, oxygen, nitrogen, and potassium
You forgot phosphorous. So...PHONCK?
I was taught CHNOPS (back in the 1900s)
@@mcv2178yeah same
Hey Professor Dave, how is it that coldwater fish like cod and mackerel, can be constantly active in temperatures that would render a reptile torpid and shortly afterwards dead? If an ectothermic fish can survive near-freezing sea temperatures, why have no ectothermic land animals evolved the same ability?
Land animals can survive at such a high freezing temperatures.
@@somdattamaiti8941 Ectothermic fish can be very active at much lower temperatures than ectothermic reptiles. Why is that?
I suppose when Professor Dave gets up to homo sapiens in this series, this piece on food acquisition and body temperature will focus on Harris-Teeters and bedspreads. ;-)
Great work, as usual, good sir! Thanks for yet another enlightening upload.
nature put us together, and science ties to figure out how
Great videoDave
11:54
actually if i recall correctly we have the same amount of hair as our closest relatives, it's just that they're not as coarse and therefore do not offer insulation or threat display use
but numerically it's around the same number
Thank you Prof for helping me better understand the universe :]
Edit made: switched the last word from earth to universe
It's wonderful and informative video
Hey dave. 5 years ago you saved my g12 chem grade. Now having gone through uni, i believe one of the courses your style would work well with is control systems. Do you think you would ever end up doing a course like that?
Hey Dave! Have you seen the recent ramblings of your good old friend from Suspicious Observers? I’d love to hear your thoughts on this but I’m sure you’re not trying to reopen old dramas.
Not interested in acknowledging the existence of that psychopath.
@@ProfessorDaveExplains I had a chuckle reading this 😂. Have a good week my friend
"A triangular metal plate, it's height equals half the length of its base, expands with heat while keeping it's shape constant, it the rate of change of its area is 0,05 cm²/s, find the rate of change of the length of its base, when the length of the base is 10cm" can you solve this for my homework please
Does goosebumps also help close sweat pores, helping heat retention through limiting heat transport through perspiration? I piss more in cold weather, which seems to make sense, given the possible reduced water loss through perspiration. Maybe the urinary tract takes up the extra load?
Thanks
Good to know
awesome
You should do short piece on "Vegan Gains" He proposes the apex predators should be 'culled' for the good of the environment. I'm assuming he's not getting enough fatty acid for proper brain function.
What is your counterargument? I prefer other technological and scientific implimentations that don't involve killing, but it is a problem that should be looked into.
@@quincywashington9355 Please tell me what the problem is that needs to be looked into.
@@quincywashington9355 Here's a middle school biology lesson for you. When you remove the apex predator from it's territory the prey population explodes. Then rather than grazing and moving on to escape, they graze the vegetation to the soil which then erodes and stops altogether. While predators only take a small percentage of their prey, they affect thousands in their grazing habits. It's a balance that's taken thousands of years to establish.
@@Robert_Browne Animal suffering in nature
@@Robert_Browne Human populations have exploded due to lack of predators eating us. This does not mean we wouldn’t be ok with killing a predator that had to subsist on human flesh to survive. So you would have to name the trait present in humans that if present in other animals would cause you to think it is justified to kill their predators. Also it is vegan gain’s position that it is only justified to kill odd-order predators.
❤❤❤
Hey Dave! How about a "10 Things All Anti-Vaxxers Say"?
How about ten side effects you could potentially be stuck with if you choose to take experimental mRNA vaccines?
Don’t let the blood clots get you on the way out 🐑
11:37 you mean mammals?
Where is wa el
I am here brother, took a long nap before showing up 😅
first, nobody cares i know
sweaty
MCToon and FTFE care. lol 😉
That's very perspicacious of you.
You make care now