Answer:
The biological significance is that it is the normal human body temperature and also the optimum temperature of the enzyme.
Explanation:
- Enzymes are biological catalysts that speed up the rate of chemical reactions. 
- Enzymes catalyze specific reactions by working on a specific substrate to convert it into a product. 
- The rate of enzyme activity depends on several factors which include pH, temperature, substrate concentration, and enzyme concentration among others.
- Enzymes work best at a specific pH and temperature known as optimum pH and optimum temperature respectively. 
- In this case, enzyme amylase works best at a temperature of 37° C which is equivalent to the normal human body temperature.
 
        
             
        
        
        
The moles of gas in the bottle has been 0.021 mol.
The ideal gas has been given as the gas where there has been negligible amount of interatomic collisions. The ideal gas equation has been given as:

<h3>Computation for the moles of gas</h3>
The gi<em>ve</em>n gas has standard pressure, 
The volume of the gas has been, 
The temperature of the gas has been, 
Substituting the values for the moles of gas, <em>n:</em>
<em />
<em />
The moles of gas in the bottle has been 0.021 mol.
Learn more about ideal gas, here:
brainly.com/question/8711877
 
        
             
        
        
        
Answer;
= 64561.95 g/mole
Explanation;
mass of Fe in 100g = .346g
 = .346 / 55.8452 moles 
 = 0.0061957 moles  
These represent 4 moles of Fe in the molecule so moles of hemaglobin 
=  0.0061957/4  
= 0.0015489 moles  
these are in 100 g so mass of 1 mole = 100 / 0.0015489
= 64561.95 g / mole 
molar mass of hemoglobin = 64561.95 g/mole
 
        
             
        
        
        
Answer:
1.  the end result of meiosis is haploid daughter cells with chromosomal combinations different from those originally present in the parent.
2.  Prophase, metaphase, and telophase