<u>Answer:</u>
<em>The measurement 100.5 mL has 4 significant figures.</em>
<u>Explanation:</u>
Significant figures are defined as the digits that provides information in order to maintain accuracy and precision of a measurement. <em>Any nonzero number, trailing zeros with a decimal point and zeros between two numbers are recognizes as significant digits. </em>
Whereas, the figures which do not contribute to sustain the accuracy and precision of the measurement are insignificant figures.
<em>The leading zeros in any digit and the trailing zeros without decimal are considered as insignificant figures. </em>
<em>As in 100.5 1, two zeros and 5 after a decimal is significant figure which are 4 in total.</em>
 
        
             
        
        
        
Answer:
I believe the answer would be "solute"(, if that's even an answer choice).
 
        
             
        
        
        
Because of the property of paleomagnetism, iron rich rocks show the location of magnetic poles at the time of their formation.
Paleomagnetism is concerned with the study of materials that have a record of the earth's magnetic field due to the content of magnetizable material within them. As iron is easily magnetized, materials with a high iron content are likely to indicate the nature of the magnetic field of the earth when they are formed.
        
                    
             
        
        
        
The scaly skin of a snake is homologous to skin of a lizard.
Homologous is a term used to describe a part of two different animals that come from a common ancestor. This makes the part will have a very similar structure. 
Other similar terms would be analogous where the part of the animals will have similar functions but comes from a different ancestor, thus have a different structure.
        
                    
             
        
        
        
Answer:
Frameshift mutation is caused by the addition or deletion of a base pair in the DNA of a gene.
Explanation:
Frameshift mutation also known as a framing error or a reading frame shift.
Frameshift mutations are due to either insertions or deletions of nucleotides. This causes the entire DNA strand to elongate or to shrink in size.
There are two types of frameshift mutations.They are insertions and deletions. Insertions involve the insertion of one of more extra nucleotides into a DNA chain.
Several diseases have frameshift mutations like HIV, Crohn's disease, cystic fibrosis etc.