Biological Levels in Biology: The World Tour

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The Amoeba Sisters tour through the biological levels of organization: cells, tissues, organs, organ systems, organism, population, community, ecosystem, biome, biosphere! Video has handout: . See table of contents by expanding details 👇

Table of Contents:
Cells: 0:44
Tissues: 1:42
Organs: 1:51
Organ Systems: 2:05
Organism (Individual) 2:29
Population 2:51
Community 3:06
Ecosystem 3:33
Biomes 3:49
Biosphere 4:15

Abiotic and Biotic 3:18

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The Amoeba Sisters videos demystify science with humor and relevance. The videos center on Pinky’s certification and experience in teaching science at the high school level. Pinky’s teacher certification is in grades 4-8 science and 8-12 composite science (encompassing biology, chemistry, and physics). Amoeba Sisters videos only cover concepts that Pinky is certified to teach, and they focus on her specialty: secondary life science. For more information about The Amoeba Sisters, visit:

We cover the basics in biology concepts at the secondary level. If you are looking to discover more about biology and go into depth beyond these basics, our recommended reference is the FREE, peer reviewed, open source OpenStax biology textbook:

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Thinara says:

All the dislikes are from the rocks who are still crying internally

Alexzander Doll says:

i just suped for the memes

Alexzander Doll says:

best video ever ( :

Luna Ssjb says:

Dio doesn't approve

Corey Delaney says:

let's get this bread boiiiiiiis

bust dooms says:

2:22 the liver is high on glycogen

Steady Ballin says:

I'm in college and no one has broken down abiotic and biotic factors to the simplest level ! Thank you!!!

Jwan Rodriguez says:

who is from school

Wicho Prolife says:


Kevin Flores says:

Que onda mucha xd

Farhan Hossain says:

Mitochondria is the powerhouse of the cell

capasourus rex says:

2019 science class anyone???

Isabella says:

isabella waz here

Asher Khon says:

shout out to Mr. Aragon

sreekar korvi says:

Hello guys,

Greetings to everyone.

If you are a Cambridge biology teacher or a student and looking for resources or want to improve your knowledge this is the right place.

At this forum you will get a diverse range of materials which includes great presentations, digital textbooks, work sheets, topical past papers , answers to typical questions and so many other things. Also you can meet and talk to biology experts from different parts of the world.

Please follow the link to see what is actually happening there… Warm regards.

Ivory Evans says:

"sounds especially fancy "

Leonardo Rodriguez says:

Everyone’s here cause of school

That French Fry says:

You made the rock sad

Super shash says:

Wow this video is so detailed and just what I needed

Noah Nesbit says:

Make a video on the DNA in a furry

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