1 Ais the periodic rise and fall of the water level in the oceans and other large bodies of water.

If a cell is placed into a hypertonic environment, what will happen to it ? a)it will shrink or shrivel b)nothing c)it will burst d) it will expand or enlarge

Are the layers of rock above and below the coal older or younger?

Which of the following determines the specificity of a dna probe? a. type of radiation b. level of enzymatic activity c. number of neutrons d. complementary base pairing