All organisms have DNA. How this happened? A common person like me would think that nature tried many possibilities or solutions, not only DNA based. Whatever the case was, DNA organisms became a very good solution and exploded in many variations that evolved to present species, but at least some other forms would have survived or even evolved. What then? Only DNA based organisms appeared ever, or other forms existed, but were eaten by "us" ?
Many viruses, if you could consider them life, use RNA rather than DNA. But then again, one of the requirements we subjectively call something that is alive is that they have DNA. So if it doesn't have DNA, than it's by definition, not alive. But again, this is subjective, so feel free to call it what you want to until a more objective scientific consensus is made.
hmmm. iv have only lernt 6 words to do with classifacation but domain sorta gets me my sciens techer did not tell up adout domain? odd but i like biology its fun
"Virus classification is the process of naming viruses and placing them into a taxonomic system. Similar to the classification systems used for cellular organisms, virus classification is the subject of ongoing debate and proposals. This is mainly due to the pseudo-living nature of viruses, which are not yet definitively classified as living or non-living. As such, they do not fit neatly into the established biological classification system in place for cellular organisms."
This is one very "like" video. =p
signetroup 1 week ago
Donkey Kong Punch Cupid Onto Floor, Great Shot!!!!
Donkey Kong Puff Clouds Of Fluffy Great Smoke. --- THKS Couz!!!----
Sam2260my 1 week ago
Remember fucking d ..king philip came over for great sex
madcows420 1 week ago
Dude, King Phillip Came Over For Great SEXXXXXXX!
Poncho151500 2 weeks ago
Dude...King David/Philp came over for grape soda
ladyEulaelie 2 weeks ago
or...
Do Kids Play Cold Or First Go Stretch ^_^
WindsorSpitfiresRock 1 month ago
it's free, so thanks
ossielmais 2 months ago
this is kid of boring, how on earth is this more interactive/different from sitting in a class?
ossielmais 2 months ago
nice tits
dahome2006 2 months ago
@dahome2006 Really I hope that's not all u got from it.
Sam2260my 1 week ago
Dumb King Phillip Came Over For Some Good Sushi
BigBallaShotCalla15 3 months ago
Why can't most teachers make things this simple? -__-'
Brandonality 3 months ago 7
@Brandonality ive just learnt everything in biology within these videos. its that simple.
topsui 2 weeks ago
Great Explanations!
msvulcanspock 7 months ago
Comment removed
hallnoats4ever 5 months ago
@hallnoats4ever what is the point of your disgusting comment? Can't you find some other venue to vent your frustrations? I feel sorry for you!
Theconservativemama 5 months ago
@Theconservativemama i thought that's that you tube was for... We own this site mama!
hallnoats4ever 5 months ago
i like your videos simple to understand:)
the way i remember the classifications is;
kids playing chasey on freeway get squahsed:)
jesseyounggg 7 months ago
hi.... i wanna be a member. let me join in this page. i'll take some video to support biology learning of my student. will you let me? thanks before
biologiedukasi 7 months ago
mahaolo really is useful
101Duli 8 months ago
My biology teacher said "dumb kids play chess on freeway get slaughtered" haha
hellomynameiszim1234 8 months ago 14
Thank you!
fabmaester 9 months ago
Dear Professor Poffenroth:
All organisms have DNA. How this happened? A common person like me would think that nature tried many possibilities or solutions, not only DNA based. Whatever the case was, DNA organisms became a very good solution and exploded in many variations that evolved to present species, but at least some other forms would have survived or even evolved. What then? Only DNA based organisms appeared ever, or other forms existed, but were eaten by "us" ?
tonatep 9 months ago
@tonatep
Many viruses, if you could consider them life, use RNA rather than DNA. But then again, one of the requirements we subjectively call something that is alive is that they have DNA. So if it doesn't have DNA, than it's by definition, not alive. But again, this is subjective, so feel free to call it what you want to until a more objective scientific consensus is made.
psychosavant 9 months ago
hmmm. iv have only lernt 6 words to do with classifacation but domain sorta gets me my sciens techer did not tell up adout domain? odd but i like biology its fun
Eggiestone 9 months ago
my acronym: don't kiss prince charming only for good stories ;3
missbunniii 10 months ago
where the viruses fit? I mean what domain: bacteria, archea, eukarya ?
tonatep 10 months ago
@tonatep
"Virus classification is the process of naming viruses and placing them into a taxonomic system. Similar to the classification systems used for cellular organisms, virus classification is the subject of ongoing debate and proposals. This is mainly due to the pseudo-living nature of viruses, which are not yet definitively classified as living or non-living. As such, they do not fit neatly into the established biological classification system in place for cellular organisms."
PyroPortrayal 10 months ago
@tonatep
Wikipedia: Virus classification
psychosavant 9 months ago
Thanks for this! It's great for my lesson plan!
SparkingWonders 11 months ago
GREAT VIDEO!
tricia618 1 year ago