A transportation system becomes necessary in multicellular organisms mainly because:
Question
A transportation system becomes necessary in multicellular organisms mainly because:
Food and oxygen are taken up at specific places while all body parts need them
Cells can move freely
Waste is never produced
Organisms do not grow
Answer
Food and oxygen are taken up at specific places while all body parts need them
Detailed Explanation
Since specialised tissues take up food and oxygen at one place while all cells need them, a transportation system is required to carry these materials throughout the body.