There are exactly 24 chromosomes in a girl cell and 24 in a boy cell.
1.ultraviolet (UV) rays
2.gamma rays
3.ferrous salts
4.mustard gas
5.X-rays
6.caffeine
An autotroph is an organism that prepares its own food using simple organic materials whist a heterotroph is an organism that cannot prepare its own food but depends on other organisms for survival.
Answer:
Thanks won't tell them anything and neither anyone else
