Q: Q: In order to create food, what do photosynthetic protists use? Choices: - thermal energy - hydrocarbons - decayed matter - light energy A:
A: light energy

Q: Q: What do you call the type of molecular signals that include insulin and that help regulate a number of biochemical processes? Choices: - nerves - acids - enzymes - hormones A:
A: hormones

Q: Q: What is the lowest level of organism that can perform all activities required for life? Choices: - system - nucleus - atom - cell A:
A: cell

Q: Q: The rings of what planet can be easily seen from earth? Choices: - Venus - jupiter - Neptune - saturn A:
A: saturn