Q: What controls every aspect of plant growth and development to some degree? Choices: - chlorophyll - pesticides - acids - hormones A:
hormones

Q: For most waves, energy is proportional to what, a term that describes the height of the wave? Choices: - wave frequency - wave volume - wave threshold - wave amplitude A:
wave amplitude

Q: Q: The "knee-jerk" motion that people involuntarily perform after being struck in the knee in a certain way is an example of what kind of behavior? Choices: - reaction - spasm - sensor - reflex A:
A: reflex

Question: Q: When your body digests food, it breaks down the molecules of nutrients and releases what? Choices: - waste materials - gas - calories - energy A:
Answer: energy

*Question*
Q: Electrons can move from one atom to another; when they do, specimens called what, with overall electric charges, are formed? Choices: - atoms - molecules - cations - ions A:
**Answer**
ions

Q: Q: What is the change in a species over time? Choices: - variation - phenomenon - transformation - evolution A:
A: evolution