Questions to answer after watching “Life’s Greatest Miracle” and reading the text
http//www.pbs.org/wgbh/nova/body/life-greatest-miracle.html
The numbers of babies made every day are 365,000. How many cells are in the human body? There are 100 trillion cells in the human body. How many sperm does a man make every second? A man makes 1000 new sperm every second. How many chromosomes does every cell have? Every cell has 46 chromosomes. How many chromosomes came from DAD? Dad contributes 23 chromosomes. How many chromosomes are in a normal sperm cell? A normal sperm cell has 23 chromosomes. How many sperm will a man typically ejaculate? A man typically ejaculates over 300 million sperm. Continue reading...