Ohhh I know this! Number 1 is saturated fats, Number 2 is unsaturated
<>"A further increase in the size of a cell could result in a surface area too small for adequate exchange of materials. Google: A large surface to volume ratio means that a small amount of living matter has a large surface through which nutrients, oxygen and wastes can diffuse."<>
It was the reptiles that lived and successfully on land
Because different cells of the body need to reproduce faster like blood cells because if we didn't have them we would die, or when your growing your body is getting rid of old cells and replacing them
