The decreased surface area to volume ratio in multicellular organisms means that simple passive diffusion across the cell membrane is no longer sufficient for maintaining homeostasis. Thus a more efficient way is required and this has arisen in the form of a excretory, circulatory and respiratory system.
Answers & Comments
Verified answer
The decreased surface area to volume ratio in multicellular organisms means that simple passive diffusion across the cell membrane is no longer sufficient for maintaining homeostasis. Thus a more efficient way is required and this has arisen in the form of a excretory, circulatory and respiratory system.