Answer: A scientific question can be answered through an investigation. What is tested? Scientists call this an independent variable.
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The asthenosphere is just below the lithosphere
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mostly collagen and some calcium phosphate
Increased use of antibiotics since the few that are immune will survive and reproduce and will out grow others that arent.
<span>The gene sequence containing an operator, promoter and repressor is known as an operon. These genes are called as structural genes. the operon is regulated by the presence/absence of the inducer such as glucose/lactose. It may also be a constitutive operon, which works all the time.</span>