Answer:
preventing friction between bones
Mutualism is the way two organisms of different species exist in a relationship in which each individual benefits. B. I hoped I helped(:
Natural gas refers to the mixture of gaseous hydrocarbons which are used as fuel. The major component of natural gas is methane. The other components of natural gas are ethane, propane, nitrogen, carbon dioxide, hydrogen-sulphide and trace amount of water.
Natural gas does not contain CARBON MONOXIDE.
<h2>Answer:</h2>
<em>Guanine</em>
When DNA is extracted from E. coli cells and analyzed for base composition, it is found that 42% of the bases are cytosine. That means that there is also 42% of guanine base.
<h3>Explanation:</h3>
According to chargaff's rule :
DNA from any cell of all organisms should have a 1:1 ratio (base Pair Rule) of pyrimidine and purine bases and, more specifically, that the amount of guanine is equal to cytosine and the amount of adenine is equal to thymine.