PLZZ ANSWER, THANKS!
Which of these is a specific defense of the body?

A. white blood cells

B. oil secretions

C. mucus

D. skin

Isolated volcanic peaks on the ocean floor are

Which best describes the nucleus of an atom a. it is where all of the particle s of the atom are located b. it is the negatively charged part of the atom c. it is where the electrons and the protons are located d. it is the part of the atom with the greatest mass

Which is a function performed by stem cells in the skin a. replacing lost skin cells b. making cells for the intestines c. growing new organs d. differentiating into brain cells plz apex