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ollegr [7]
3 years ago
7

Which chemical is added to many municipal water supplies to prevent tooth decay

Biology
2 answers:
defon3 years ago
5 0
Fluorine.

Fluorine is a chemical used in toothpastes to prevent tooth decay and improve the condition of the teeth.
It can also be used in water to prevent decay.
Yakvenalex [24]3 years ago
4 0
Sodium fluoride is a chemical that is added in many municipal water supplies to prevent tooth decay. You can even find it in your toothpaste if you look at the ingredients. Sodium fluoride is a very safe and effective chemical used in lots of oral products because of its benefits against tooth decay. Hope this helps!
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If you were a scientist studying traits which are selected by humans instead of the environment, you would be studying the follo
Dvinal [7]

The correct answer is: Artificial selection (selective breeding).

Artificial Selection is a form of selection, totally influenced by human, in which traits that should be passed onto offspring are chosen by human. Selective breeding was used long before the genetics was discoverd. Farmers used individuals with beneficial traits, larger in size, with bigger fruit etc.

Hunting is also one type of selective breeding, since the hunters choose the animal and remove it from the population (gene pool), leaving the “weaker” to pass on to the next generation.


3 0
3 years ago
How and where is NADPH produced?
Vika [28.1K]

Answer:

NADPH is formed on the stromal side of the thylakoid membrane, so it is released into the stroma. In a process called non-cyclic photophosphorylation (the "standard" form of the light-dependent reactions), electrons are removed from the water and passed through PSII and PSI before ending up in NADPH.

5 0
3 years ago
Antibiotics are prescribed for a child with otitis media who underwent a myringotomy with insertion of tympanostomy tubes. The n
saw5 [17]

Answer:

The preferable option will be - 1.

1. "Administer the antibiotics until they are gone."

Explanation:

  • A myringotomy is the insertion of tympanoplasty tubes into the middle ear to promote drainage of purulent middle ear fluid, equalize pressure, and keep the ear aerated.
  • The nurse must instruct parents regarding the administration of antibiotics.
  • Antibiotics need to be taken as prescribed, and the full course needs to be completed.
  • The parents should complete the full course antibiotic therapy.

4 0
3 years ago
Replication is when DNA is?<br> O Mutated<br> O Changed<br> O Copied<br> O Destroyed
Karolina [17]
Copied, I agree with the person above ^ :’)
4 0
3 years ago
DNA is a macromolecule called nucleic acid (a polymer). What is the monomer (subunit; one part) of DNA called?
zimovet [89]
Nucleotide is a combination of a sugar, nitrogen base and phosphate groupment
8 0
3 years ago
Read 2 more answers
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