Aquifers are a located below the water table b important sources of freshwater c located in the saturated zone d all of the above

What links the two strands in a dna helix together in the middle? a. phosphate groups b. sugar rings bonded together c. proteins d. bases with hydrogen bonds

What is the next step in muscle contraction after the actin changes shape? (apex)

Which is not a likely outcome after extensive irrigation of dry farmland? useless, unproductive soil salinization of the soil depletion of groundwater nutrient-rich soil