What does selectively permeable mean????

Question

A. selectively permeable means not letting anything in or out.

B. selectively permeable means letting everything in and out.

C. selectively permeable means only letting things in but never letting anything out.

D. selectively permeable means letting only some thing in and some things out

Answer 1

Oh come on, make a guess :)

Answer 2

you are selecting, which means choosing some and not others to let through

Answer 3

no
B. selectively permeable means letting everything in and out.

Answer 4

http://www.thefreedictionary.com/Selectively+permeable

Answer 5

oh so D

Answer 6

Yes

Answer 7

so is it d or b

Answer 8

D is the answer btw

Answer 9

what r the answers

Answer 10

all the answers
pls

Answer 11

The answers are:
1. D
2. A
3. D
4. B
5. B
Lighting strikes the top of your head because YALL SO SMART. Your welcome ;D

Answer 12

Thank you Tempest

Answer 13

Tempest why and how are you here then? You typed the question and searched it up and came here to make fun of us? I mean, copying is not good unless your coming here to check your work and atleast learn rather than copy all the time.

Answer 14

I didn't mean it to be mean, I am sorry if it offended you. And no, I did not search up the answers and copy it. These were the answers I put in myself and got 100% on. I am sorry again if I was being mean. And, I am here because I like to help people when they need to check their answers, not to copy...

Answer 15

Oh and, I was not the one who asked the question...

Answer 16

Well I am happy to help anytime. If you have anything you need help on, this is the site to go to! Just don't use it to cheat though...

Answer 17

d
a
d
b
b

Answer 18

lunar i read that book and ur wrong the real answers are
1d
2b
3b
4a
5d