Which of the following affects the amount of total cholesterol in your body?

Which one of the following research methods can show cause and effect

Which branches of natural science include the study of an organism that lived 10 million years ago

The charge on an electron is 1.60218 × 10−19 c and its mass is 9.10939 × 10−31 kg. how strong a magnetic field must be experienced by the electron if its path is a circle of radius 5.5 cm? answer in units of t.