Problem: OPTIONS:
- methane
- calcium
- sulfur
- oxygen
Q: Q: Photosynthesis uses solar energy, carbon dioxide, and water to produce energy-storing carbohydrates.what is produced as a waste product? A:
Answer: oxygen

Problem:OPTIONS:
- carbon
- Hydrogen
- nitrogen
- oxygen

Q: Anaerobic prokaryotes can live without what compound in their environment (it's a compound that people do need to live)? A:
****
A: oxygen

Q: Enzymes in saliva help bread down and digest what? A:
OPTIONS:
- starches and water
- water and fiber
- fiber and minerals
- starches and fats
starches and fats

Q: What's the term for a piece of an organism breaking off and forming a new organism? A:
OPTIONS:
- depletion
- improvization
- extinction
- fragmentation

Answer: fragmentation

Question: Q: In living systems, diffusion of substances into and out of cells is mediated by the what membrane? A:
OPTIONS:
- gas
- fluid
- ferment
- plasma
Answer: plasma

input: OPTIONS:
- microscope
- telescope
- scale
- sonar Now, answer this question: Q: What tool is useful for studying the ocean floor because the environment is remote and underwater? A:
A:
output:
sonar