Answer: C. there is more silicon than calcium at the surface of the earth
Explanation:
They do not have a cell wall because only plant cells have that. The plant cells have that to help with the process for creating the green color. The animal cells, instead, they have a cell membrane.
Answer:
D
Explanation:
I t would be different because she would of only did it once so not really an investigation
There a small amount of alcohol in celery and salt the two make a base particles that run that soaks up the food colouring