Birth and immigration
death and emigration
Answer:
The sperm and egg have 1/2 the amount because when the sperm fertilizes the egg, it equals out to the regular amount of chromosomes. That is why we have half chromosomes from our dad and half chromosomes from our mom, equaling out to normal amount of chromosomes.
Is there a picture ?????????????????????
carbon date then figure out what species
My answer would be 2:2 for the first one and if they were all girls, assuming none are bald, the ratio would be 4:0. sorry if i’m wrong that’s just how i solved the problem:)