A, milligrams because rice is very small therefore you'd need to use a very small unit of measurement.
Isotopes are the atoms of the same element with same atomic number but different mass number isotopes of same element have same chemical properties due to same number of electrons atomic number of an atom is the number of electrons protons in it and mass number is the sum of protons
D.)14 to 16 days ... at least for a fly with is an insect also
plz mark branliest
