Q: You are presented with the quiz "what do acellular organisms need?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "viruses are usually considered to be nonliving" and "viruses are acellular and live on materials of other life". So, what's the best answer to the question?

OPTIONS:
- body water
- fungi
- Bodily water
- Energy.
- moss
- Energy
- flesh
- living host

A: living host

Q: You are presented with the quiz "These are a type of protein that provides cellular energy in the human body:" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "protein is used to repair cells by the human body" and "enzymes provide cellular energy, repair tissue organs and cells". So, what's the best answer to the question?

OPTIONS:
- health
- pituitary
- coiled
- Proteins
- unique
- growth
- enzymes
- complexity

A: enzymes

Q: You are presented with the quiz "What has a life cycle with sexual reproduction?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "arthropods have a life cycle with sexual reproduction" and "all insects are arthropods". So, what's the best answer to the question?

OPTIONS:
- animals
- viruses
- plants
- fungi
- mammals
- the Sun
- planets
- insects

A: insects

Q: You are presented with the quiz "What content increases melting points of solids?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "adding salt to a solid decreases the freezing point of that solid" and "water density decreases with temperature and increases with salt content". So, what's the best answer to the question?

OPTIONS:
- salt
- Joules
- water
- fats
- heat
- glass
- sugar
- coal

A:
salt