★ Blood & Blood Vessels Quiz
Which statement about veins is correct?
A. They all carry deoxygenated blood
B. .They carry blood away from the heart.
C. They have thick muscular walls.
D. They have valves to prevent backflow.
Select your answer:
Topics:
Regulation of Heart Rate Bacteria & Viruses Bacterial Growth The Cell Cycle Pancreatitis Composition of Blood and Blood Cells Nutrition in Animals Shoulder Blood Donation Musculoskeletal Diseases Healthcare Careers Organic Compounds, Minerals and Enzymes DNA and Genetic Manipulation Ortho Infectious Disease Pulmonology/RespiratoryOther quiz:
Cell Cycle › ViewWhich enzyme is responsible for adding the free nucleotides to the replicating DNA?
A. DNA Helicase
B. DNA Ligase
C. DNA polyermase
D. RNA Polymerase
Biochemistry Vocabulary › View
What type of bond is between two water molecules?
A. Covalent bond
B. Ionic bond
C. Hydrogen bond
D. Nonpolar bond