¿Que tipo de crecimiento permiten los meristemos primarios en los tallos y raizes

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

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

Explain how scientists use geologic time to determine the age of landforms.