False, atomic mass is the weighted average mass of an atom of an element based on the relative natural abundance of that element's isotopes
B. Gene. Piebalding is caused by mutant copies of genes.
Answer:
a)species x is anaerobic, and species y is aerobic
Phospholipids are made up of fatty acids, glycerol, and phosphate.
If you're referring to the structure of a phospholipid, they are composed of a water-loving (hydrophilic) head and a water-fearing (hydrophobic) tail. The tail is made up of long chains of hydrogen and carbon molecules as well.