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, 
Answer:
Forceps should be used because directly touching the substance and dropping it into the acid with your hands can cause harm to yourself, and it can also prevent contamination of the substance.
Without those parts, the cell wouldnt be able to perform its basic function and thus die
Answer:
e) a drive
Explanation:
We felt thirsty when we have fluid imbalance in our body either we have less water or we have more concentration of osmolytes such as sodium in blood. The brain detect the change produce the effect for the intake of water.
- However thirst is a vital primordial emotion that motivates us for fluid intake. So the emotion produces a drive to quench it.
- Some recent studies refers it as basic instinct to drink water.
The basic building blocks of matter are called atoms.