reproduction

• the human body contains about 20,000 genes
• what are the two types of reproduction?

  asexual and sexual
• gamete - sex cell (eggs/ova & sperm)
• zygote - fertilised egg
• embryo - developing organism from zygote to birth
• disadvantages of asexual reproduction: no variation, reduces chance of living due to lack of evolution
• advantages of asexual reproduction: quick process, produces perfect clone, ideal for rare organisms, no need to find mate
• mitosis is a type of asexual reproduction