Control group
Explanation:
Experiments are usually designed so that the differences between the experiment and control groups can be observed. 
- The experimental group is the group that follows the details of the hypothesis where variables are changed to see their causes and effects. 
- The control group is the standard by which the experimental group is compared with. 
- The variables are being tested for in the experimental group to see how they are changing . 
learn more: 
Controlled experiment brainly.com/question/1621519
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A. Osmosis. Hope this helps :)
        
                    
             
        
        
        
<span>The answer is autosomes.
</span>In
a human diploid somatic cell (2n), there are 22 chromosomes
present in two copies and 1 pair of sex chromosomes. This means
there are 23 pairs of chromosomes - 22 pairs of autosomes and 1
pair of sex chromosomes. <span>There are in total 46 chromosomes (23 pairs
in 2 copies: 23 × 2 = 46).</span>