Cell maintain homeostasis through diffusion in isotonic solution. Isotonic means that the concentrations are the same on either side of the membrane, maintaining homeostasis.
I suppose it is the density, having more pockets of air in between the granules of sawdust. Air has oxygen. What does a fire need to strive? Oxygen.
"A plants vascular system is made up of specialized cells that for straw-like tubes" is the one among the following that <span>allows a plant's vascular system to work as a transport system. The correct option among all the options that are given in the question is the third option or option "C". I hope it helps you. </span>
