Topics: Biochemistry Quiz
Where is most of an atom’s mass located?
A. In the electrons
B. In the nucleus
C. In the electron shells
D. Evenly distributed throughout
Select your answer:

Topics:
Nucleic Acids Gene Expression Epithelial Tissue Virus Tutor Oral Biology Careers in Health Care Vitamins and Minerals Bone Marrow Histology Division of Microbiology Enzyme Hematology The Nervous System Dermatology Dimensions of Wellness ReceptorsOther quiz:
EKG CCMA › ViewPrehypertension is a blood pressure reading above
A. 150/100 mm Hg.
B. 140/90 mm Hg.
C. 130/85 mm Hg.
D. 120/80 mm Hg.
Urinary System › View
Urine is carried to the urinary bladder by
A. blood vessels
B. the ureters
C. the urethra
D. the calyces