Answer:
Protists help break down dead material and help produce oxygen
Explanation:
I just took the quiz on k12
Answer:
This would result in an increase in the movement of substances out of the tubule via the Paracellular route.
Explanation:
Paracellular Transport:
The transportation of the substances or molecules by passing between the neighboring epithelial cells. It is a passive transport. This type of transportation is not suitable for the macro-molecules and is used for specific size molecules.
True I think but not sure
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.