Q: Layers of placental transfer cells help transport nutrients to the embryos as they develop into what? Choices: - keratinocytes - fibroblasts - kinesins - sporophytes A:
sporophytes

Q: Who first discovered the moons of jupiter in 1610? Choices: - Newton - darwin - Socrates - galileo A:
galileo

Q: Q: What expresses the mass of substance in terms of the volume occupied by the substance? Choices: - velocity - frequency - diameter - density A:
A: density

Question: Q: The bottomsbut not the topsof the wave slow down because of what? Choices: - size - vibration - temperature - friction A:
Answer: friction

*Question*
Q: What is the term for the visible part of the electromagnetic spectrum? Choices: - chroma - gravity - electricity - light A:
**Answer**
light

*Question*
Q: What part of the kangaroo helps it balance when it leaps as well as when it sits? Choices: - large feet - the pouch - the spine - the tail A:
**Answer**
the tail