Q: You are presented with the quiz "something what to cilia help prokaryotes move." But you don't know the answer, so you turn to your teacher to ask for hints. He says that "flagella help prokaryotes move" and "flagella and cilia are similar in structure". So, what's the best answer to the question?

OPTIONS:
- it needs them
- Chemical energy
- similar in structure
- It helps them survive
- it keeps an organism warm
- major threat to health
- An object is seen
- The bending of a ray of light

A: similar in structure

Q: You are presented with the quiz "What are major producers in the desert?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "plants are the major producers in terrestrial biomes" and "among the desert biomes, there are different kinds". So, what's the best answer to the question?

OPTIONS:
- food
- flowers
- executives
- the Sun
- grass
- plants
- Trees
- oxygen

A: plants

Q: You are presented with the quiz "What type of energy does a wind turbine use to convert wind energy?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "awindmill converts wind energy into electricity primarily by using mechanical energy" and "today, new kinds of windmills, called wind turbines, generate electricity". So, what's the best answer to the question?

OPTIONS:
- energy
- unidirectional
- mechanical
- thrust
- waves
- rays or beams
- direct energy
- adding heat

A: mechanical

Q: You are presented with the quiz "what have a centralized nervous system with a brain?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "fish have a centralized nervous system with a brain" and "fish include bass and salmon". So, what's the best answer to the question?

OPTIONS:
- sharks
- mammals
- salmon
- h2o
- plants
- humans
- protist
- tortoises

A:
salmon