please help me this is due soon :(( giving brain liest for whoever does it right, and it does it in there own words, ITS OK IF A LITTLE IS FROM THE INTERNET :D pls help im giving brain liest :) i need a pro to come help

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

The illustration shown is an ovum, a female sex cell. a mutation in this cell may be passed to the woman’s offspring during a) birth. b) mitosis. c) dna replication. d) sexual reproduction

What goes in and out of a cell respiration?