reproduction

• gamete: sex cell
• zygote: fertilised egg
• testes: produce sperm and testosterone
• sperm duct: carries sperm from testes to urethra/penis
• what is the purpose of semen?

  its the fluid in which sperm is transported and it supplies nutrients for sperm
• sperm tail helps to swim and sperm head contains nucleus for fertilisation
• birth process: labour, birth, placenta removal
• breastfeeding strengthens bond between mother and kid, contains antibodies and may reduce breast cancer
• genes located in chromosomes which are located in nucleus of cell
• 46 chromosomes (23 pairs)