Drag the tiles to the boxes to complete the pairs. Match the drug schedules to their descriptions.
Schedule 1
Schedule 2
Schedule 3
Schedule 4
Schedule 5
valid medical use but with severe limitations and high potential for abuse and
dependence, for example cocaine and morphine
maximum possibility for abuse, no valid medical use, for example heroin and LSD
>
wide medical use and low potential for abuse and dependence, for example Valium
and Xanax
very low potential for abuse and wide medicinal use, for example cough medicines
less potential for abuse and established medical use, for example barbiturates and
steroids

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:

oxygen is the first element in group 16 (via) of the periodic table. the periodic table is a chart that shows how chemical elements are related to each other. the elements in group 16 are said to belong to the chalcogen family. other elements in this group include  sulfur, selenium, tellurium,  and  polonium.  the name chalcogen comes from the greek word  chalkos,  meaning "ore." the first two members of the family, oxygen and sulfur, are found in most ores.

oxygen is by far the most abundant element in the earth's crust. nearly half of all the atoms in the earth are oxygen atoms. oxygen also makes up about one-fifth of the earth's atmosphere. nearly 90 percent of the weight of the oceans is due to oxygen. in addition, oxygen is thought to be the third most abundant element in the universe and in the solar system.

i think your answer is a. it splits a cell into two new daughter cells. the others don't really make sense to me so i would go with that one.