Answer:
Add them!
Explanation:
The mass number of an atom is its total number of protons and neutrons
Carbon, hydrogen, oxygen, nitrogen, phosphorus, sulfur
:)
The use of scientific name, which follows the rules of a standardized classification system.
<h3>Scientific classification of organisms</h3>
The scientific classification of organisms is known as the taxonomy. This system is used to categorise organisms into seven main divisions which include:
This system of naming organisms is accepted internationally. If the first person that named the killer whale used the scientific name which is <em>Orcinus orca,</em> the second person would have understood better.
Learn more about taxonomy here:
brainly.com/question/4110891
The answer is cell membrane
