True
<span>Dentists are doctors that specialize in teeth and jaw alignment. They are also doctors but their only focus is in the oral cavity. They could also perform surgeries and anesthesia in patients and are probably one of the most lucrative types of professions in society. If you want to have procedures done with your teeth you should consult with a dentist and ask for possible solutions as to how you can improve your oral cavity. Aside from the teeth they are also concerned with the proper alignment of the jaws.</span>
Answer:Decreasing the distance between the moon and the planet
Explanation:
I think it is keystone. If they were not there the population of urchins would go up and the kelp would go down.
Hydroxyapatite is the major component of bone that contributes to its hardness.
I would go with 4 that's what makes the most sense to me, and i just learned about this last year so... I hope this helps good luck..
