Topics: Macromolecules Quiz
All organic compounds contain the element
A. carbon
B. nitrogen
C. phosphorus
D. sulfur
Select your answer:

Topics:
Respiratory Food System & Nutrients Musculoskeletal Injuries Personal Growth Plan Digestive System and Nutrition Transplantation Immunology Thyroid Disease Homeostasis - Vision Correction Body Movements Neuroanatomy Bones, Joints and Muscles First Aid Malaria The Energy Nutrients Orthopedic SurgeonOther quiz:
Microbiology › ViewWhich nitrogenous bases are classified as pyrimidines in DNA nucleotides?
A. Adenine and Guanine
B. Cytosine and Thymine
C. Guanine and Thymine
D. Adenine and Cytosine
Virus › View
Can any virus invade any cell?
A. yes
B. no