The humoral immune response is delivered by
A. antibodies.
B. T cells.
C. lymphokines.
D. antigens.
A
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Consider the metabolic repertoire of prokaryotes and the diverse environments in which they can thrive to answer the following questions. Respiration is strictly an aerobic process
A. true B. false
Compare a pseudocoelom to a coelom.
A. A coelom is completely enclosed by mesoderm whereas a pseudocoelom has an outer covering of mesoderm and an inner one of endoderm. B. A pseudocoelom is completely enclosed by mesoderm whereas a coelom has an outer covering of mesoderm and an inner one of endoderm. C. The coelom is enclosed by ectoderm and the pseudocoelom is enclosed by endoderm. D. The pseudocoelom is enclosed by ectoderm and the coelom is enclosed by endoderm. E. The coelom is enclosed by ectoderm and the pseudocoelom is enclosed by mesoderm.
When a B cell contacts a foreign or abnormal antigen, it develops into a ________ that releases ________.
A) macrophage : histamine B) macrophage : antibodies C) plasma cell : histamine D) natural killer cell : antibodies E) plasma cell : antibodies
In a process called (cytokinesis/hematopoiesis/hematocrit), blood stem cells located in the bone marrow produce the three types of formed elements found in the blood
What will be an ideal response?