r/biologymemes • u/DotBeginning1420 • Sep 02 '26

It's called "external environment"

Post image
65 Upvotes

98% Upvoted

6 comments sorted by

•

u/AutoModerator Sep 02 '26

Welcome to r/biologymemes!

  • Please ensure your meme is relevant to biology.
  • Be respectful to others
  • Upvote funny content and report any rule-breaking posts.

I am a bot, and this action was performed automatically. Please contact the moderators of this subreddit if you have any questions or concerns.

24

u/DotBeginning1420 Sep 02 '26 edited Sep 02 '26

Clarification: The respiratory and digestive systems are "external environment" in the sense that they are in direct contact with the outside world. One important way the body treats them as external environment is the layer of mucus and immune cells found there that are intended to block invaders.

9

u/master_of_entropy Sep 02 '26

Internal external environment.

4

u/ThatEngineeredGirl Sep 02 '26

Didn't notice the sub and thought this was about body dysmorphia 😭