Brain loses 5 to 10% of its weight between the
ages of 20 and 90. One study found that the volume of the brain was 15% less in
older adults than in younger adults. On average, the brain loses 5% to 10% of
its weight between the ages of 20 and 90 years; brain volume also decreases.
Answer:
an atom or molecule with a net electric charge due to the loss or gain of one or more electrons.
Explanation:
Answer:
In a chemical reaction, the atoms and molecules that interact with each other are called reactants. In a chemical reaction, the atoms and molecules produced by the reaction are called products.
A. the mitochondria and chloroplasts are much different in structure than bacteria
Organic molecules, which are found mostly in food. These molecules have C-C or C-H bonds, which are high energy bonds.
