Answer: a cell wall
Explanation: a cell wall is a barrier that protects the plant cell. Animal cells do not need this becuase they have a cell membrane which also protects the cell.
Answer:
HI, So People need more explination, What was the experiment about? That way we can give a proper answer...
Explanation:
Out of the choices given, the reason why Kathy's body feels sore and she has pain in her limbs after vigorously exercising is an accumulation of lactic acid in the muscles of her limbs. The correct answer is A.
Left to right away from the higher concentration of salt. Fluids try to be in balance, with equal distribution of what’s dissolved in them.
Because the common cold is cause by a ‘virus’.......
The answer is VIRUS
