It is because they have hydrophilic phosphate groups that are attracted to water and hydrophobic fatty acid tails that avoid water.
Hope this helps!
Answer: There are 206 bones in the human adult body, but 270 bones at birth.
The most forward two teeth in the upper or lower mouth are incisors
Evidence of the past life preserved in rocks . This overlap of dna suggested we all derived from a common ancestor
The region of the chromosomes to which the spindle fiber is attached during cell division...both mitosis and meiosis. Its the constricted point at which 2 chromatids forming the chromosomes are joined together
