Question

Explain how surface area to volume ratio affects the need for a specialised exchange system.

Accepted Answer

SA:V & exchange systems:As organisms get larger, SA:V gets smaller and distances substances need to travel from outside to reach cells in center of body get longerThis makes it harder and ultimately impossible to absorb enough oxygen through the available surface area to meet the demands of the body

Front	Explain how surface area to volume ratio affects the need for a specialised exchange system.
Back	SA:V & exchange systems: As organisms get larger, SA:V gets smaller and distances substances need to travel from outside to reach cells in center of body get longer This makes it harder and ultimately impossible to absorb enough oxygen through the available surface area to meet the demands of the body

Surface Area Exchange Sa:V Body Explain Volume Ratio