The answer would be B. Abiotic Factors. The prefix a means not, so a biotic means not alive. Hope that helped :D
Isotonic solution nothing happens to the cell it exists as it is.....in a hypotonic solution the cell will shrivel up and in hypertonic solution it will swell to the point of rupturing (aka cytolyse)
The type of bone tissue that makes up the majority of the vertebral body is the cancellous bone tissue.
The answer is A. Excretion I hope this helps
