Gel electrophoresis is used to seperate macromolecules like DNA, RNA and proteins. DNA fragments are seperated according to their size, proteins can seperated according to their size, and their charge "different proteins have different charges"
Answer:
B
Explanation:
All animals in the food chain have a job and keep each other balanced. With out the top predator the species that are lower than the top predator will over populate and throw off the food chain.
Hope this helps :)
Answer:
The electric field on the surface of a conductor is perpendicular to its surface.
Explanation:
A conductor is a material that has the ability to transport electric charge through it.
Inside such a conductor that is in equilibrium, the electric field is zero, so that the charge accumulates on the surface of the conductor.
The electric field on the surface of a conductor is perpendicular to its surface.
This external electric field on the surface of the condutor can be calculated by Gauss's law, which establishes the equivalence of the flow across a surface with the net charge inside the conductor divided by the permittivity in the vacuum.
The girls mass would have increased as she is growing and the bones in her body are growing and becoming stronger. Her weight would also change drastically as she’s getting older. Peak bone mass is influenced by a variety of factors: some that you can't change, like gender and race, and some that you can, like nutrition and physical activity. Calcium is an essential nutrient for bone health. A well-balanced diet including adequate amounts of vitamins and minerals such as magnesium, zinc, and vitamin D is also important.
Chlorofluorocarbons are greenhouse gasses found in refrigerator parts. In poor parts of the world they make cheap refrigerators that are bad for the environment and when they throw them away the gasses are released.
