It would be a human egg cell. Microbiologists study microscopic organisms that cause infections, including viruses, bacteria, and fungi+algae
The answer that fits the given blank above is the term ASSIMILATION. In the process of assimilation, there is a large production of organic nitrogen and this includes amino acids, other proteins, and nucleic acids. This is when nitrogen is converted into ammonia.
Molecule is the smallest particle of a compound or an element with similar properties as the element or the compound. Covalent bond (dative bond) is a bond that is formed due to the sharing of electrons between atoms. Coordinate covalent bond is a type of covalent where electrons shared during bond formation comes from one atom. In this case a molecule of H2O would form a coordinate bond with H+ because the oxygen contains a lone pair of electrons forming H3O+.