Annette observed that if she put salad dressing on her salad in the morning before leaving home, by lunch time she found excess liquid in her container and the greens were wilted. why does this happen?

The correct answer would be - the hypertonic condition will cause the diffusion of the water outside the cell.

Explanation:

Annette found out that salad dressing cause releasing the excess liquid in the container after putting salad dressing in the salad. The salad dressing probably creating the hypertonic solution around the plant cells (salad greens).

The hypertonic solution around the plant cells causes diffusion of the water to diffuse from the cell to the outer cell. The diffusion will create a decrease in the turgor pressure inside the cell which causes greens to wilt.

Thus, the correct answer is - the hypertonic condition will cause the diffusion of the water outside the cell.

format change of dna.  

i'd say that the moon rock is about 2.2 billion years old.