I'm not sure about number 1 or number 6, but I know that 3 is nucleic acid and 5 is solution.
Answer: The bacteria uses the oxygen present in the mouth.
Explanation:
The plaque that is formed in the teeth is a highly anaerobic bacteria but it can sustain in the environment rich in oxygen. The oxygen is used by the bacteria and there is a absence of oxygen in the teeth.
It is formed in between the teeth which needs oxygen to survive and if remains for tooth for a longer period of time then it began to grow without oxygen.
It basically uses the oxygen available in the mouth and makes the condition anaerobic.
The answer to that would be B. This is because carrying capacity is the amount of something that can be handled.
Answer:
the enzyme and substrate fit together like a lock and key.
