Answer:
Because melting can be reversed ( freezing )
Explanation:
Physical change is a change that can be reversed
It takes place in the mitochondria.
Answer:
B
Explanation:
i am sorry if this is wrong
Answer:
If we could see your choices, it would better help us to help you.
Explanation:
But, if you are referring to the most widely accepted theory:
Anthropogenic (man-made) Global Warming, or AGW. The theory states that man-made greenhouse gases, primarily carbon dioxide (CO2 ), are the predominant cause for the global warming that has occurred during the past 50 years.
This is called cellular (or tissue) differentiation into specialized types, based upon their specific function (jobs). Every cell in the body with a nucleus contains the same DNA and genes, however specialized cells only transcribe and translate those genes which code for the proteins that the cells will need for their specialized structure (size and shape) and functions.
Therefore PROTEINS are the reason skin cells, for example, are different than brain cells, on the molecular level in the same organism.
