Q: Answer the following question given this paragraph: Photosynthetic protists use light energy to make food. They are major producers in aquatic ecosystems. Q: In order to create food, what do photosynthetic protists use? Choices: - thermal energy - hydrocarbons - decayed matter - light energy A:
A: light energy

Q: Answer the following question given this paragraph: Hormones Hormones are molecular signals that help regulate a number of biochemical processes. Single amino acids and short protein chains are very common types of hormones. For example, insulin is a protein hormone that regulates the amount of glucose present in the bloodstream. 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: Answer the following question given this paragraph: 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: Answer the following question given this paragraph: All of the outer planets have numerous moons. They also have planetary rings made of dust and other small particles. Only the rings of Saturn can be easily seen from Earth. Q: The rings of what planet can be easily seen from earth? Choices: - Venus - jupiter - Neptune - saturn A:
A: saturn