Q: Sediments in oligotrophic lakes contain large amounts of what? A:
OPTIONS:
- algae
- fertilizer
- igneous rocks
- decomposable organic matter

Answer: decomposable organic matter

Question: Q: Defecating, urination, and even childbirth involve cooperation between the diaphragm and these? A:
OPTIONS:
- heart muscles
- skeletal muscles
- lung muscles
- abdominal muscles
Answer: abdominal muscles

input with options: Q: What play an important role in the modulation of the nuclear chain reaction? A:
OPTIONS:
- radiation rods
- control neutrons
- particle rods
- control rods
output: control rods

Q: Q: When light is absorbed by a material, what may increase? A:

OPTIONS:
- happiness
- weight
- mass
- its temperature

A: its temperature

input: OPTIONS:
- non-existant
- reducing
- lower
- higher Now, answer this question: Q: Which temperatures cause particles of reactants to have more energy? A:
A:
output: higher

Question: Q: Echinoderms lack what type of system that in humans consists of the brain and spinal cord? A:
OPTIONS:
- autonomic system
- endocrine system
- peripheral nervous system
- centralized nervous system
Answer:
centralized nervous system