Unit 4 Review - Homeostasis

Paul Andersen reviews the major concepts within the fourth unit of the new AP Biology framework. He begins by differentiating between negative and positive feedback loops. He explains how a stable internal environment is maintained through behavior and physiology. He details thermoregulation, osmoregulation and blood glucose regulation. He also describes how natural selection has shaped behavior.
Intro Music Atribution
Title: I4dsong_loop_main.wav
Artist: CosmicD
Link to sound: www.freesound.org/people/Cosmi...
Creative Commons Atribution License

[@mspacman94]

please never ever stop making these videos. i wish you taught at my school.

[@sh3eqa]

when i want to study something that is difficult in my mind , i'll definitely watch your video ! thanks , Mr Anderson !

[@inderpreetsingh4417]

Exemious explanation Mr. Andreson!

[@cindyla2902]

Thank you for the review

[@wahooooh]

I love you Mr. Andersen!!!!

[@mtrps_]

i recommend repeating through your points as a closure

[@Natsitex]

Thank you for the video!! you are very good at explanation

[@gutenmorgan2063]

you explain stuff so well thank you

[@felicitylau8807]

thank you very much! >

[@talzO9]

Hello Mr.Andersen we meet again

[@Cassidybros]

thanks alot, I wish you were a teacher at my school:)

[@mollyvannlamouth3928]

what does induction, differentiation and cell death have to do with homeostasis?

[@tummoments135]

Thanks for let me related science in to real life. Teacher

[@Myron_The_Wolf]

could the key points for this video be explained in a paragraph (5 sentences)? Please????

[@seal6012]

do ur damn hw

[@nandikabyrishetty5707]

@@seal6012 BAHAHAH

[@emilyfarmer21]

so if no genes were methylated, in theory, could a stem cell do everything?

[@codismith1903]

I have got to say you make things 100x easier to understand! ps... it's very attractive! ;)

[@yeahjeon7074]

HEY CLASSMATE, IM FROM THE BIOLOGY CLASS MRS. K*AN SCHOOL D*C IF YOU SEE THIS I SAY HAII TO YOU

[@cristobalriquelme1153]

Which disease may affect the homeostasis?

[@seal6012]

Diabetes

[@joshuachoi4806]

are you watching this because your 7th grade science teacher assigned this to you?

[@aurakaylalee]

Yes lol

[@Crusader-ct1qv]

Yes

[@ilikemovies22]

36 hours until this test : )

[@franklalic4939]

Can anyone answer this pls…..
The temperature in a room drops to 65 F causing the heater to turn on. The temperature change is an example of
a. Response
b. Stimulus
c. Effector
d. Receptor
e. Control system
Tnx

[@RejoiceChibuye-lm5sy]

Digestive

[@sadat704]

Notice me senpai

[@gamma_02]

mf has the generic school portrait background one

[@Jun-tn8gx]

bi and gay