Answer: It describes water molecules moving across a membrane, which allows the water molecules to pass in and out freely, but forbids the motion of other molecules.
Explanation:
A in Biology class last year.
Answer:
hassles
It may show in your book
it is called permissive interaction
duckweed at pH 7
then second one is
duckweed at pH5
jus did it.
False
The planets orbit because of the suns gravitational pull
