How do you think scientists count the world’s human population?

Scientists use sampling to get an estimate of things they can't easily count. Scientists keep track of the change (increase or decrease) of population numbers to make decisions about issues that affect that population.

it would be heredity

sorry to break it to ya but no one can answer your question it's just

jk but i am serious about the part that most people cant answer it beacuse you did not mention the section you are talking about. but it would if you added some detail and were a bit more specific.