Lavoisier would have taken mercury and heated it up to 350 degrees centigrade in air and then found that a new compound was formed a red or yellow mineral which would be mercury oxide so the experimental observation would be the change in color of the mercury and the formation of a mineral with different properties from pure mercury.
Answer:
A
Explanation:
although they may evolve, done if the matter will remain the same.
The brain which, along with the spinal cord gathers informationand responds to changes in the environment.
