Question: You are presented with the quiz "Fish and other animals eat tiny animals that feed on what?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "zooplankton are tiny animals that feed on phytoplankton" and "fish and other animals eat the zooplankton". So, what's the best answer to the question?
OPTIONS:
- heat energy
- light energy
- Organic compounds
- Energy.
- phytoplankton
- Chemical energy
- an organism's body
- kinetic energy
Answer: phytoplankton

Question: You are presented with the quiz "What will die without a supply of blood?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "brain cells die quickly if their oxygen supply is cut off" and "here, the lungs supply the blood with oxygen". So, what's the best answer to the question?
OPTIONS:
- plants
- organs
- brain cells
- athletes
- humans
- species
- critical organs
- mushrooms
Answer: brain cells

Question: You are presented with the quiz "Where do some plants store water?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "astem is used to store water by some plants" and "inside the stem is fibrous material". So, what's the best answer to the question?
OPTIONS:
- near the shoreline
- fibrous material
- rocks
- soil
- dormant state
- mountain sources
- one celled organisms
- air
Answer:
fibrous material