Fluorine
Check out the periodic table. Exact mass number of Fluorine should appear as 18.99...
The biggest difference in the microbiota can be seen in : ( B ) your cheek versus your friend’s cheek.
<h3>What is Microbiota </h3>
Microbiota is the microorganisms present in specific region or area and It protects the region from harmful indigenous microorganisms as well. The microbiota specie that is present in an individual varies greatly from the microbiota species present in a different individual.
Therefore the Microbiota species present in your cheek will vary greatly from the microbiota species present in your friend's cheek.
Hence we can conclude that The biggest difference in the microbiota can be seen in your cheek versus your friend’s cheek.
Learn more about Microbiota : brainly.com/question/9870114
Answer:
1. The population will increase as they're better adapted to their environment and have a higher survival rate due to this helpful phenotype.
2. This happens to the population because this helpful phenotype might lead to less exposure to predation in which leads to a better survival fitness for the organism.
3. This mutation continues to exist as the organisms continue to successfully reproduce into the population due to being able to survive for longer.
The correct answer is that "t<span>roponin holds the tropomyosin in place on the actin".
In excitation-contraction coupling, tropomyosin prevents the interaction between actin and myosin in resting muscles. In the event of excitation, there is release of calcium from the sarcoplasmic reticulum wherein the troponin will bind this calcium and will release tropomyosin and expose myosin enabling it to attach to actin and therefore facilitating muscle contraction.</span>
