Isotopes are atoms with the same atomic number but different atomic weights. Atoms of different isotopes are atoms of the same chemical element. They differ in the number of neutrons in the nucleus.
Answer:
I wasn't sure what you were asking
Explanation:
The fluid mosaic model explains various observations regarding the structure of functional cell membranes. According to this biological model, there is a lipid bilayer (two molecules thick layer consisting primarily of amphipathic phospholipids) in which protein molecules are embedded.
The adrenal gland. This gland releases hormones that maintain homeostasis and blood pressure.
Method X because it protects the variety from diseases
