B. Two protons and two neutrons
Answer:
1# Questions: People who have gene mutations have more treatment options.
2# Question: 20 amino acids
Explanation:
Answer:
C. Different organs working together to do a job
Explanation:
Pretty self explanatory, sets of organs make up an organ system.
Hopefully this helps!
Brainliest please?
I think you are refering to the periodic table. The periodic table is important because it is organized to provide a great deal of information about elements and how they relate to one another in one easy-to-use reference. The table can be used to predict the properties of elements, even those that have not yet been discovered.