Answer:
<h2>B</h2>
Explanation:
1. Fatty acid synthesis:   it is the  anabolic process though which the creation  of fatty acids occurs in the cell from the molecules like acetyl-CoA and NADPH.
2. Fatty acid synthesis occurs by the enzyme fatty acid synthases.
3. Most of the acetyl-CoA which is required for the synthesis of  fatty acids is derived from carbohydrates through the glycolytic pathway.
4. Fatty acid synthase of mammalian cell Contains ACP, which carries acyl groups attached through thioester linkages.
 
        
             
        
        
        
A balance is best used to measure a sample's mass.
Answer: C
Explanation:
Weighing balance refers to a measuring instrument which is used to measure the mass of the sample. 
It has two pans. On one pan, the material to be weighed is placed, with adequate known loads on the other one to such an extent that the shaft will be in balance. 
The distinction between the zero perusing and the perusing with the dish stacked demonstrates the contrast between burdens in scale divisions. 
Such an instant weighing needs the arms be of equivalent length.  
 
        
             
        
        
        
Answer:
Certain fossils, called index fossils, help geologists match rock layers. To be useful as an index fossil, a fossil must be widely distributed and represent a type of organism that existed for a brief time period.