The correct answer is D- the balance between the concentrations inside and outside a cell
D) increased balsam fir population
Answer:
The answer to Your Question Is down below :)
Explanation:
Working with mice, scientists have discovered that a particular protein helps nerve cells extend themselves along the spinal cord during mammalian development.
With a partner, describe interactions in this scene, tracing the movement of materials or energy through all four of Earth’s spheres if possible. Plants (biosphere) draw water (hydrosphere) and nutrients from the soil (geosphere) and release water vapor into the atmosphere.
It's Copper (Cu). because when copper oxidizes it becomes green
