Learn Biology: Classification- The Taxonomic Hierarchy

Mahalo biology expert Mary Poffenroth explains the classification system of species and the taxonomic hierarchy. 

The Taxonomic Hierarchy
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This taxonomic system was initially pioneered by
Carl Linnaeus in the 18th century. Linnaeus used Latin terms to arrange species according to observable similarities and differences in their physical morphology. With recent innovations in molecular biology, the traditional classification system has been made more precise by the possibility of going beyond superficial similarities and mapping similarities and differences between species at the genetic level.  
Following this hierarchy, the highest level, domain, distinguishes between bacteria and organisms with a true cell nucleus. The next level down, kingdom, distinguishes plants from animals. Below the kingdom level, at the level of phylum, we can differentiate between vertebrates and creatures with no backbone. Among the vertebrates, you can differentiate mammals from birds, fish and reptiles at the class level. Among mammals, you can differentiate between ones that eat meat and ones that don't. Some mammals belong to the order

Classification of a Sample Species
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In order to form a clearer idea of these categories, it is helpful to think of a specific example, like a mountain lion.
At the domain level, a mountain lion belongs to the category of
Eukarya, which are organisms with a cellular nucleus, unlike bacteria. At the kingdom level, it is Animalia, as opposed to a plant or a fungus. Mountain lions belong to the phylum Chordata, which are animals that have a backbone, in contrast to Arthropoda (spiders) or Porifera (sponges).  
The c

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[meganjean]

Did - domain 
King - kingdom
Phillip - phylum
Come - class
Over - order
For - family
Good - genus
Spaghetti- species

[algophxbia]

Do kids prefer candy over fresh green salad?

[Rawkeeb]

Bless her soul for making Biology a walk in the park

[veronicamarie]

Do Keep Plates Clean Or Families Get Sick

[humakhan]

i love the way she put it in order, , , thank you much

[rymunoz]

Thank you so much! Now I can memorize the order! you saved me!

[KeepCalmAndCarrieOn]

Thanks for this! It's great for my lesson plan!

[marclawrenzpaoil]

This is really helpful! Well-explained! Love it!

[sachinbahadoorsingh]

Thanks. Helped with test a lot. I didn't understand it at all before this video

[daisy]

thanks for that, and right before my big test too! Yay!

[topsui]

@Brandonality ive just learnt everything in biology within these videos. its that simple.

[WowGurujiOfficial]

Thanks for making these :)
Great work !

[mokay]

OMG it is this easy. My professor explains it like a puzzle. Why do i even go to college if youtube is a better teacher.

[sumeranoreen]

Is diversity is increase from domain to species or from species to domain?
Please give me answer quickly please 🤗

[ThKirbyKrw]

K: Killing
P: Pigs
C: Creates
O: Opportunity
F:  For
G: Great
S: Snacks
 

[sahilsahu]

Please explain me each of the category in detail

[PyroPortrayal]

@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."

[lmcasarez]

omg why cant you be my teacher ! i love this ! you rock !

[rhi]

"Do kindly put condoms on for good sex" - from my pregnant biology teacher.

[duckspaddling]

What's the consensus on kingdoms? How many are there and what is each called? thank you