Problem:OPTIONS:
- crystals
- ridges
- lava channels
- plates

Q: What are the things moving under the earth's mantle that move the crust? A:
****
A: plates

Q: Fatty acids, triglycerides, phospholipids, and steroids are examples of what? A:
OPTIONS:
- tissues
- enzymes
- proteins
- lipids
lipids

Q: Water, carbon dioxide, and what other element are important agents of chemical weathering? A:
OPTIONS:
- helium
- methane
- sulfur
- oxygen

Answer: oxygen

Question: Q: What is the substance called whenatoms of different elements join together? A:
OPTIONS:
- crusts
- crystals
- plants
- compounds
Answer: compounds

input with options: Q: Comparing anatomy, and characterizing the similarities and differences, provides evidence of what process? A:
OPTIONS:
- regression
- devolution
- emergence
- evolution
output: evolution

Problem: OPTIONS:
- phototropism
- pollenation
- sensitivity
- thigmotropism
Q: Q: What is the touch response in plants called? A:
Answer:
thigmotropism