The answer would be bathroom cleaner!
There is a few condition to ensure a high-quality CPR accomplished:
1. Depth= At least 5cm or 2 inch
2. Complete Recoil= Let the chest return to normal
3. Frequency: At least 100 times a minute
4. Minimal interruption = don't stop too much
5. Avoid hyperventilation: Don't give too much air
Answer: New research shows that colonies of Escherichia coli can demonstrate a form of learning.
Explanation: Bacterial colonies can evolve the ability to anticipate changes in their immediate environment, say researchers led by Saeed Tavazoie at Princeton University in New Jersey. Other types of bacteria could too. This skill could give them the edge over other bacteria that merely adapt themselves to current conditions.
Natural selection<span> and selective breeding can both cause changes in animals and plants. The </span>difference between<span> the two is that </span>natural selection<span> happens naturally, but selective breeding only occurs when humans intervene. For this reason selective breeding is sometimes called </span>artificial selection<span>.</span>
