“The person says above is the answer!”
Well, it's obvious, because without a transport system, cells wouldn't have the nutrients and things they needed!! And waste wouldn't be able to circulate out of cells.
Answer:
The main function of the alveoli is storage of air for a shorter period which permits absorption of oxygen into the blood. The gaseous exchange of oxygen and carbon dioxide typically takes place in the alveoli. The main function of the bronchiole is to allow the passage of air freely into the lungs
Each cell has ______<u>(Sorry I don't know this one either)</u>______ genes activated depending on it's job and what kind of cell it is.
It is the presence of ____<u>Lactose</u>____ that causes the repressor protein to fall off and unblock the gene on the lac operon.
If a gene is turned on then it is being ______<u>expressed</u>______.
An additional circular chromosome found in some bacteria that is used in genetic engineering. Plasmid
Answer:
c-ab is the only correct answer
