Metals, non metals, and metalloids
They produce narrow-band high-frequency sound to help them navigate in water. These high-frequency sounds are used in echolocation. Echolocation is used to identify and locate prey and also avoid the predators. Marine mammals like whales and dolphin use echolocation in different manners.
It is b because it just is
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.
A) part a is cell wall part b is chloroplast
