input with options: Q: What is the branch of science that studies the physical world? A:
OPTIONS:
- social science
- botany
- Ecology
- physics
output: physics

input with options: Q: Lampreys use their sucker to feed on what part of other fish species? A:
OPTIONS:
- heart
- brain
- liver
- blood
output: blood

input with options: Q: Although it is not vital to humans, calcitonin is important for calcium homeostasis in adults of some species in what group characterized by backbones? A:
OPTIONS:
- mammals
- reptiles
- invertebrates
- vertebrates
output: vertebrates

input with options: Q: What evolutionary process may affect the distribution of a polygenic trait? A:
OPTIONS:
- artificial selection
- flow selection
- characteristic selection
- natural selection
output:
natural selection