Characteristics of Life

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Amoeba Sisters
Published at : 06 Sep 2021
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Life is difficult to define, but there are characteristics of life that can be explored! Join the Amoeba Sisters as they explore several characteristics of life. Click "show more" to expand video details to see table of contents & additional information. 👇

We chose not to give a numerical value for how many characteristics of life there are, because we do not want to imply that what we are listing must be a specific order, or that it cannot be expanded upon or include exceptions. Additionally, characteristics can also certainly be titled differently. Our goal is to promote thought and discussion about what it means for an organism to be alive as well as provide characteristics of life that can be explored when trying to study living things.

CHARACTERISTICS OF LIFE MENTIONED IN THIS VIDEO:
Intro 00:00
Organization (all life is composed of 1 or more cells) 2:20
Homeostasis 2:54
Metabolism (including need to obtain+use energy) 3:35
Reproduction 4:22
Growth and Development 4:46
Response to Stimuli 5:10
Evolution (occurs in populations, can lead to adaptation) 5:58

While living organisms tend to have ALL of the above characteristics, there are exceptions (such as the ‘zonkey’ mentioned in video at 6:55).

*Quote Citation:
Mullen, Leslie. (2013, August 1). Defining Life: Q&A with Scientist Gerald Joyce. https://www.space.com/22210-life-definition-gerald-joyce-interview.html

[Added 7/12/2018: NASA also uses this quote as a working definition of life. You can learn more here:
https://astrobiology.nasa.gov/research/life-detection/about/]

Reference:
A recommended reference is the FREE, peer reviewed, open source OpenStax biology textbook: https://openstax.org/details/books/biology.
OpenStax, Biology. OpenStax CNX. http://cnx.org/contents/185cbf87-c72e-48f5-b51e-f14f21b5eabd@11.2.
You will notice that this source includes some additional life characteristics beyond our video to consider as well.

Recommended for Further Reading (and thought provoking!):
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3005285/
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC516796/
http://science.sciencemag.org/content/295/5563/2215.full


~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
We have videos on many of the characteristics mentioned in this video. Check out our full, often updating biology playlist: https://www.youtube.com/playlist?list=PLwL0Myd7Dk1F0iQPGrjehze3eDpco1eVz


The Amoeba Sisters videos demystify science with humor and relevance. The videos center on Pinky’s certification and experience in teaching biology at the high school level. For more information about The Amoeba Sisters, visit:
http://www.amoebasisters.com/about-us.html

Support Us? https://www.amoebasisters.com/support-us

Our Resources:
Biology Playlist: https://www.youtube.com/playlist?list=PLwL0Myd7Dk1F0iQPGrjehze3eDpco1eVz
GIFs: https://www.amoebasisters.com/gifs.html
Handouts: https://www.amoebasisters.com/handouts.html
Comics: https://www.amoebasisters.com/parameciumparlorcomics
Unlectured Series: https://www.amoebasisters.com/unlectured

Connect with us!
Website: https://www.AmoebaSisters.com
Twitter: http://www.twitter.com/AmoebaSisters
Facebook: http://www.facebook.com/AmoebaSisters
Tumblr: http://www.amoebasisters.tumblr.com
Pinterest: http://www.pinterest.com/AmoebaSister­s
Instagram: https://www.instagram.com/amoebasistersofficial/

Visit our Redbubble store at https://www.amoebasisters.com/store

TIPS FOR VIEWING EDU YOUTUBE VIDEOS:
Want to learn tips for viewing edu YouTube videos including changing the speed, language, viewing the transcript, etc? https://www.amoebasisters.com/pinkys-ed-tech-favorites/10-youtube-tips-from-an-edu-youtuber-duo

MUSIC:
Music in this video is listed free to use/no attribution required from the YouTube audio library https://www.youtube.com/audiolibrary/music?feature=blog

COMMUNITY:
We take pride in our AWESOME community, and we welcome feedback and discussion. However, please remember that this is an education channel. See YouTube’s community guidelines and how YouTube handles comments that are reported by the community. We also reserve the right to remove comments.

TRANSLATIONS:
While we don’t allow dubbing of our videos, we do gladly accept subtitle translations from our community. Some translated subtitles on our videos were translated by the community using YouTube’s community-contributed subtitle feature. After the feature was discontinued by YouTube, we have another option for submitting translated subtitles here: https://www.amoebasisters.com/pinkys-ed-tech-favorites/community-contributed-subtitles We want to thank our amazing community for the generosity of their time in continuing to create translated subtitles. If you have a concern about community contributed contributions, please contact us.

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