Problem: OPTIONS:
- radionuclides
- quarks
- membranes
- radioisotopes
Q: Q: One of the most advanced uses of what in medicine is the positron emission tomography scanner, which detects the activity in the body of a very small injection of radioactive glucose? A:
Answer: radioisotopes

Problem:OPTIONS:
- primary producers
- decomposers
- insectivores
- consumers

Q: What members of an ecosystem food chain take in food by eating producers or other living things? A:
****
A: consumers

Q: Defined as a substance in foods and beverages that is essential to human survival, what term encompasses water, energy-yielding and body-building substances, and vitamins and minerals? A:
OPTIONS:
- molecules
- sustenance
- calories
- nutrients
nutrients

Q: In a chemical reaction, the amounts of reactants and products will be constant when what state is attained? A:
OPTIONS:
- saturation
- peak
- homogeneity
- equilibrium

Answer: equilibrium

Question: Q: Saturn is made mostly of helium and what else? A:
OPTIONS:
- nitrogen
- carbon
- hydrogen
- hydrogen
Answer: hydrogen

input: OPTIONS:
- an acid
- a catalyst
- a component
- a hydrocarbon Now, answer this question: Q: What is an organic compound that is made up of only carbon and hydrogen? A:
A:
output:
a hydrocarbon