5. Which list identifies minerals present in andesite from the greatest percentage by volume to the least percentage by volume?
A) biotite, plagioclase feldspar, amphibole B) biotite, amphibole, plagioclase feldspar
C) plagioclase feldspar, biotite, amphibole D) plagioclase feldspar, amphibole, biotite

the index of refraction of the second medium is higher. i just took the test trust me !

the dna molecules have a negative charge because of the phosphate groups in their sugar-phosphate backbone, so they start moving through the matrix of the gel towards the positive pole. power is turned on and dna fragments migrate through gel (towards the positive electrode).

explanation:

d. groundwater flows through the subsoil and deposits minerals.

the correct answer is: b. pantala flavescens, because these organisms would have a high level of genetic variation due to sexual reproduction.  

because involves two organisms (parents) whose genetic material combines, sexual reproduction leads to genetic variation in new generations of offspring. the offspring is an unique organism, with new genome, more protected with the higher ability to adapted. this process is fundamental to evolution.