Question and answer
can i get other reasons
Multi-cellular organisms are too big and not all of their cells have contact with the external environment. All organisms need to exchange substances with their environment - take in needed molecules and get rid of waste. [ A uni-cellular organism can use the processes of osmosis, diffusion and active transport to transport substances in and out of the organism, which is in this case just one
cell. But as organisms increase in size, they need a specialized transport system to exchange substances between the internal environment and the external environment. Interestingly enough, osmosis and diffusion are still the important mechanisms at the cellular level. ]
Get an answer
Original conversation
User: what is the need for a transport system in multicellular organisms

User: can i get other reasons





Weegy: Multi-cellular organisms are too big and not all of their cells have contact with the external environment. All organisms need to exchange substances with their environment - take in needed molecules and get rid of waste. [ A uni-cellular organism can use the processes of osmosis, diffusion and active transport to transport substances in and out of the organism, which is in this case just one cell. But as organisms increase in size, they need a specialized transport system to exchange substances between the internal environment and the external environment. Interestingly enough, osmosis and diffusion are still the important mechanisms at the cellular level. ]
Expert answered|Ronald0906|Points 45|

Question
Asked 10/15/2012 6:30:42 PM
0 Answers/Comments
New answers
Rating

There are no new answers.

Comments

There are no comments.

Add an answer or comment
Log in or sign up first.
21,565,144 questions answered
Popular Conversations
Write the equivalent fraction and percent for 0.28. User: Write the ...
Weegy: What is the ratio? User: write the fraction 5/7 as a percent
7/5/2015 3:50:39 PM| 3 Answers
Which of the following was NOT a characteristic trait of Mao's ...
Weegy: Maoism is his philosophy. link to it : [ ] User: Which of the following was NOT a characteristic trait of ...
7/5/2015 1:41:46 PM| 2 Answers
The cost of goods sold divided by the average inventory equals the ...
Weegy: Cost of merchandise sold equals beginning inventory : Plus net purchases less ending inventory. User: ...
7/5/2015 3:12:36 PM| 2 Answers
After posting is completed in the accounts receivable ledger and ...
Weegy: A subsidiary accounts receivable ledger - or account - is basically a list of clients who are in debt to your ...
7/5/2015 7:22:55 PM| 2 Answers
Weegy Stuff
S
1
L
P
1
1
Points 153 [Total 1559]| Ratings 1| Comments 143| Invitations 0|Offline
S
1
Points 143 [Total 654]| Ratings 0| Comments 143| Invitations 0|Offline
S
P
C
L
P
L
1
P
P
1
P
1
P
Points 52 [Total 9581]| Ratings 0| Comments 52| Invitations 0|Offline
S
Points 43 [Total 43]| Ratings 1| Comments 33| Invitations 0|Offline
S
1
L
L
Points 24 [Total 8404]| Ratings 0| Comments 24| Invitations 0|Offline
S
R
Points 8 [Total 210]| Ratings 0| Comments 8| Invitations 0|Offline
S
L
P
P
Points 4 [Total 3563]| Ratings 0| Comments 4| Invitations 0|Offline
S
Points 4 [Total 4]| Ratings 0| Comments 4| Invitations 0|Offline
S
Points 3 [Total 3]| Ratings 0| Comments 3| Invitations 0|Offline
S
Points 1 [Total 1]| Ratings 0| Comments 1| Invitations 0|Offline
Home | Contact | Blog | About | Terms | Privacy | Social | ©2015 Purple Inc.