White matter is the slightly more pale tissue in the areas of the brain and spinal cord. It consists of nerve fibers with their myelin sheaths (the fatty substance that surrounds and "protects" the axon.
The Mitochrodria helps break down sugar and turns it into energy
Answer: d- because a model is never exactly the same as the thing it represents
Traits that are passed down on an X or a Y chromosome are sex-linked traits. Most of the time males are affected by sex-linked traits because males only have one X and a Y. The Y is the chromosome that makes a man, a man.
It makes a weird kind of medicine that makes you more healthy, and it eats away rotting wood .etc.
