Answer:
stethoscope is the instrument used to measure heart beat
 
        
                    
             
        
        
        
The functions that both the nerve cells and muscle cells
have in common are the following;
-         
Both cells are excitable
-         
They both experience voltage difference in the
cell membrane
-         
The cell membrane of both of cells has electrochemical
impulses
 
        
             
        
        
        
Answer:
All the offsprings would be heterozygous purple colored flower
Explanation:
Given 
Purple color flower is dominant over white color flower
Let the allele for purple color of flower be represented by "P"
and the allele for white color flower be represented by "p"
A pea plant that is homozygous purple-flowered is crossed with a pea plant that is white-flowered. 
Genotype of homozygous purple-flower is "PP"
and Genotype of homozygous white-flower is "pp"
Cross between PP and pp produce the following offspring
PP * pp
Pp, Pp , Pp , Pp
All the offsprings would be heterozygous purple colored flower
 
        
             
        
        
        
Explanation:
The giant-impact hypothesis is currently the favored scientific hypothesis for the formation of the Moon. Supporting evidence includes: Earth's spin and the Moon's orbit have similar orientations. Moon samples indicate that the Moon's surface was once molten.
 
        
             
        
        
        
Answer:
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