Without it, everyone would have to provide their own food and shelter.
The inflation theory is your answer!
Answer:globe. Determine if Greenland is larger than Africa. topographical map. Plan a cross-country ski trip. RADAR. Find a safe place to land a plane on a foggy day.
Explanation:
Answer: Transport proteins carry cells
Explanation: Transport proteins have to times carrier proteins and another. Carrier proteins transport proteins and cells. Hope this helped!