They generate a fattu subtance known as myelin.
Answer:
The independent variable are the vitamins .
The dependent variable are the rats.
Explanation:
The vitamins are the independent variable because they are are controllable. You can control how many vitamins the rats will be given.
Index fossils are rocks that have the imprint of a dead animal or plant.I think.
If you’ve ever burned yourself on a metal pot while waiting for water to boil, you know that water heats up much more slowly than metal. In fact, water has a stronger resistance to temperature change than most other substances. What property of water causes this