Problem: OPTIONS:
- photosynthetics
- neither
- autotrophs
- chemotrophs
Q: Q: Are the majority of archaea chemotrophs or photosynthetic? A:
Answer: chemotrophs

Problem:OPTIONS:
- mass
- contrast
- sound
- color

Q: Quantum chromodynamics combines what property with quark theory? A:
****
A: color

Q: Lymph vessels, like veins, have what objects that prevent the backflow of fluid? A:
OPTIONS:
- pumps
- pores
- fibers
- valves
valves

Q: A mutation is a random change in an organism's what? A:
OPTIONS:
- power
- structure
- babies
- genes

Answer: genes

Question: Q: Where do ectotherms get most of their heat? A:
OPTIONS:
- food
- metabolism
- internally
- external sources
Answer: external sources

input: OPTIONS:
- ooze
- square
- plasma
- gas Now, answer this question: Q: Water can be a solid, liquid, and what other form? A:
A:
output:
gas