Problem: OPTIONS:
- Energy
- Plants growth
- food chain
- agriculture
- Animal survival
- Energy.
- energy usage
- kinetic energy
Q: You are presented with the quiz "Biomass is the total mass of organisms at a step in the what?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "biomass is the total mass of organisms at a trophic level" and "each of the steps in the food chain is a trophic level ". So, what's the best answer to the question?
Answer: food chain
Problem:OPTIONS:
- Decreases
- It's unmeasurable
- Increases
- reduce
- vaporization
- cool off
- It expands
- Stays the same

You are presented with the quiz "What does pressure do to the temperature of an object?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "friction causes the temperature of an object to increase" and "pressure causes friction, and friction causes heat". So, what's the best answer to the question?
****
A: Increases
You are presented with the quiz "Animals may leave an environment during which event?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "if the amount of available food and water decreases in an environment then animals may leave that environment to find food and water" and "famines occur when there is a general shortage of food". So, what's the best answer to the question?
OPTIONS:
- Birth
- Winter
- Tropical
- Rainstorm
- flooding
- Hibernation
- Famine
- storms
Famine
You are presented with the quiz "What does predation limit on a species?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "having no natural predators increases population size" and "populations can also be limited by predation". So, what's the best answer to the question?
OPTIONS:
- Animal survival
- Reproduction
- the number of animals
- genetic material
- scarce resources
- nutrients
- grass
- birds

Answer: the number of animals
Question: You are presented with the quiz "What can cause bent light to separate into colors?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "sunlight and rain can cause a rainbow" and "bent light separates into the colors of a rainbow". So, what's the best answer to the question?
OPTIONS:
- heat energy
- focusing a lens
- chemical changes
- flow of electrons
- electrically
- Electrical energy
- sunlight and rain
- energy of moving objects
Answer: sunlight and rain
input: OPTIONS:
- horses
- fungi
- insects
- plants
- Conifers
- ferns
- potatoes
- legumes Now, answer this question: You are presented with the quiz "what are multicellular eukaryotes?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "animals are a kingdom of multicellular eukaryotes" and "horses are domestic animals". So, what's the best answer to the question?
A:
output:
horses