Q: Q: Polygenic traits result in a distribution that resembles a curve. what is the shape of the curve? Choices: - W-shaped - J-shaped - egg-shaped - bell-shaped A:
A: bell-shaped

Q: Q: What is a mixture of metal with one or more other elements? Choices: - an alkali metal - a halloid - a metalloid - an alloy A:
A: an alloy

Q: Q: In a dehydration reaction, what is removed as two monomers are joined together? Choices: - carbon - air - nitrogen - water A:
A: water

Q: Q: What kind of structure do purines have? Choices: - triple ring structure - single ring structure - helical stucture - double ring structure A:
A: double ring structure