Problem: OPTIONS:
- solar radiation
- rain
- hurricanes
- cold weather
Q: Q: Birds are known for flying south in the winter to avoid what? A:
Answer: cold weather
Problem: OPTIONS:
- ion
- quark
- neutron
- electron
Q: Q: Because atoms are always electrically neutral, for each added proton, one of what is also added? A:
Answer: electron
Problem: OPTIONS:
- vacuole
- lysosome
- molecules
- nucleus
Q: Q: The cytoplasm is all the contents of the cell inside the cell membrane, with the exception of what? A:
Answer:
nucleus