It is an important<span> part of many cells and processes such as amino acids, proteins and even our DNA. It is also needed to make chlorophyll in plants, which is used in photosynthesis to make their food.</span>
The more different the human is between human sperm to the eggs might just look different that every sperm is different because of the way their inherited DNA.
Peer review helps scientists do their job better by giving them feedback from others. It also helps control the quality of scientific research and publications.
