Q: You are presented with the quiz "what do coral polyps form?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "many corals secrete an exoskeleton that builds up to become a coral reef" and "coral reefs are made up of the accumulated exoskeletons of the coral polyp". So, what's the best answer to the question? | OPTIONS:
- lagoon
- graptolites
- a cuticle
- barnacles
- bioaerosols
- cave
- coral reef
- salt and water.
A: coral reef

Q: You are presented with the quiz "what light can animals not see?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "eyes are used for seeing by animals by sensing light" and "infrared light is invisible to the eye". So, what's the best answer to the question? | OPTIONS:
- Sand dollars
- electricity
- motion
- sun's heat
- photons
- our star
- heat
- infrared
A: infrared

Q: You are presented with the quiz "what did birds evolve from?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "birds evolved from a group of bipedal dinosaurs called theropods" and "dromaeosaurs are part of the theropod group of dinosaurs". So, what's the best answer to the question? | OPTIONS:
- chickens
- insects
- fur and fat
- dromaeosaurs
- beaks
- feathers
- animals
- warm-blooded
A: dromaeosaurs

Q: You are presented with the quiz "What are cells the basic units of the structure and function of?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "cells are the basic units of the structure and function of living things" and "an organism is a living thing". So, what's the best answer to the question? | OPTIONS:
- humans
- Most plants
- animals
- Cell service
- Organisms
- mammals
- Lego cells
- Buildings
A: Organisms