Answer:
Part 1.  The amount of calcium is independent variable.
Explanation:
An independent variable is a variable in an experiment which is changed to see its effects on dependent variable.
In this experiment, to know about the causes of osteoporosis, the Ca level in blood or calcium intake in changed.
So the concentration of calcium will be independent variable.
Part 2.
The risk of bone fractures is could be changed with calcium.
Explanation:
In this experiment osteoporosis or risk of bone fracture is dependent variable.
Dependent variable are results of experiment which can be changed by independent variable.
As in experiment, Calcium concentration is independent variable.
So the risk of osteoporosis depends can change with calcium.
 
        
                    
             
        
        
        
Answer:
Wouldn't it be the lower one because It has less to heat up and the other one takes longer because it has more to heat.
Explanation:
pls mark brainliest 
 
        
                    
             
        
        
        
Answer:
In the anaphase, this is where the magical part of the process occurs. The chromosomes coil, and separate along with the centrosomes. Spindle fibers shorten and/or form, and the sister chromatids align in the equator of the cell.
 
        
             
        
        
        
Answer: B
Explanation:
During polymerization of nucleotides to form nucleic acids, the hydroxyl group on the phosphate group attaches to the 3’ carbon of a sugar of one nucleotide to form an ester bond to the phosphate of another nucleotide. The reaction forms a phosphodiester linkage and eliminates a water molecule.
The DNA strands generally runs from 5 prime to 3 prime direction.