The answer is D. It <span>keeps outside substances away from the receptor cells</span>
A housekeeper I think , that's the answer
False..the energy was depleted just a little..lets say a wolf comes and eats the rabbit..then the energy in the rabbit from grass will deplete a little more and so forth if a human comes and kills the wolf and eats it...the energy always goes down a bit
Answer to this question is b