★ Circulatory and Respiratory System Quiz
__________________ rush to the site of a cut and produce ____________, which forms a protective covering over the cut.
A. platelets, fibrin
B. plasma, white blood cells
C. red blood cells, hemoglobin
D. white blood cells, fibrin
Select your answer:

Topics:
Skin Structure Biological Molecules and Enzymes Hematologic System Integumentary System: Skin Disorder Brain, Neurons and The Nervous System Fluid and Electrolytes Biochemistry/Cells Protein Synthesis Enzymes Muscle Tissue Health and Social Care Transplantation Immunology Physiology Pathology Safety Terms Bone Physiology Multicellular OrganismsOther quiz:
Enzymes and Their Functions › ViewWhat is the active site of an enzyme?
A. The part of the enzyme where substrates bind and undergo a chemical reaction.
B. The part of the enzyme that is permanently altered during the reaction.
C. The part of the enzyme that binds to inhibitors.
D. The part of the enzyme that is responsible for its solubility in water.
Nervous System › View
An axon conducts nerve impulses _________ the cell body.
A. away from
B. toward
C. both toward and away
D. around, bypassing