A. the mitochondria and chloroplasts are much different in structure than bacteria
The answer would be letter a
Answer:
Eggshells are made of calcium carbonate. If you soak an egg in vinegar the eggshell will absorb the acid and break down, or dissolve. The calcium carbonate will become carbon dioxide gas, which will go into the air.
Explanation:
It will bounce.
I believe that it is testable because you can do it at home.
Independent variable is vinegar.
Answer: c
Explanation: because it helps by excreting
The earth is about 6,000 years old.