Science

a: cell membrane ~
b: wall and gate

What:

they both let in things that they want and keep things that they dont want out


Useful?
Writer:
LCC:
Where: Reference Link Has Evaporated
Date: Nov 3 2014 10:20 PM


No critique for this page.
Feel free to be the first


Please review the linked page for context.
If you can think of something better than this,
please add it to the database

Name:
required
Contact:
(email or url) optional
Topic:
Comment:

This is an anti-spam device. Are you Human?

If so, please click the circle next to 'Yes' to submit your comment