Bacteria protects the cell in your intestine and helps us absorb fatty acids. It is harmful because when you have contact with it, the bacteria can reproduce in your body, damaging it and making you sick.
For the first question, I would say a line graph. And the one about the human heart, I need some more information.
Answer:
temperature of water will be 37degree celcius
Explanation:
B, I think, because by saying that the ice cube has a lower heat capacity means that it cannot stead heat enough to last longer then the water and pool.
