*Question*
Q: Average acceleration is the rate of change of what? Choices: - direction - speed - displacement - velocity A:
**Answer**
velocity

*Question*
Q: What describes the amount of solute in a solution? Choices: - viscosity - solubility - frequency - tonicity A:
**Answer**
tonicity

*Question*
Q: What part of the plant has a root end and a shoot end? Choices: - radius - leaves - pistol - axis A:
**Answer**
axis

*Question*
Q: What effect occurs when a few individuals start, or found, a new population? Choices: - divergent - convergent - pioneer - founder A:
**Answer**
founder