Answer : The molar concentration is, 
Explanation :
First we have to calculate the moles of protein.

Number of molecules of protein = 2 molecules
Avogadro's number = 

Now we have to calculate the radius.
Radius = 
Conversion used : (1 mm = 0.001 m)
Now we have to calculate the volume.



Conversion used : (1 m³ = 1000 L)
Now we have to calculate the molar concentration.



Thus, the molar concentration is, 
The answer is A. <span>Light from the Sun reflects off the Moon as it orbits Earth. Hundreds of thousands of miles lie between the Moon and Earth.</span>
Hold on I can help you with this it's gonna take me maybe 10-20 min
Answer:
multicellular; single celled organisms are often too tiny to be seen without a microscope
Left to right away from the higher concentration of salt. Fluids try to be in balance, with equal distribution of what’s dissolved in them.