Cell, and gas are for sure made up of atoms so it’s either heat or a solid
Biochemistry is the study of the chemical processes occurring in living matter.
The heart has 4 chambers.
Hormones and water balance are another two conditions which are maintained by cells.
Answer:
Iraq will have to massively reduce the birth rate to achieve a zero growth rate. In the middle east, there is more sexual freedom which may cause sexual education to be useless. Iraqi government would most likely have to give widespread contraception to its citizens.They would either have to lower birth rates or increase death rates. It would be more practical for the Iraqi government to provide contraception's and sexual education among its citizens to decrease birth rates.