The answer could possibly be natural selection or survival of the fittest
Ionic bonding is the complete transfer of valence electron(s) between atoms. It is a type of chemical bond that generates two oppositely charged ions. In ionic bonds, the metal loses electrons to become a positively charged cation, whereas the nonmetal accepts those electrons to become a negatively charge
It is true that first time parents are usually concerned about red dots on their infant's face and neck. The nurse should tell these new parents it is quite normal for newborn's skin to have these red dots and these red dots are normally harmless and usually disappear after a few weeks.
Common rashes or red spots on newborn babies are believed to be due to exposure in the womb to maternal hormones. These new born rashes are believed to be normal and would normally disappear after a few weeks on their own.
The answer to this question would be simple squamous epithelium.
When you need to supply oxygen or nutrient, the thinner cell layer the faster it can move. In this case, simple squamous epithelium is better since it provides protection but can let the nutrient transported quickly.
glue the plus sign, then sunlight, arrow, hexagon plus the rest of the O2s