Which of the following statements is true?

Some DNA tests analyze the mitochondria instead of the nucleus of a cell.
Inconclusive DNA test results usually means the suspect is guilty.
The most common biological evidence used in DNA testing is sweat.
DNA testing cannot be done on cells that have been dead for more than five years.

Identify two types of chemical bonding in the source of dietary potassium

Which process does not require the presence of a physical substance in order to transfer heat? air in the atmosphere is heated by the ground. this warm air then rises, and cooler air falls. this is an example of what type of process? how is conduction different from radiation?

Look at the spectrums of a star moving towards earth and a motionless star. which of these is a correct inference that can be draw from the observation of the two spectrums? (2 points) the spectrum of a motionless star is difficult to be viewed separately using oridinary telescopes. the spectrum of a motionless star is identical to the spectrum of a star which moves towards earth. the spectrum of a star shifts towards the red region when the star moves towards earth. the spectrum of a star shifts towards the blue region when the star moves towards earth.